"Hey Chelsea! Come here a sec" Laura Olson called out.

"Hey…what's up?" Chelsea said coming into her older sister's room. "Oh God what is that?" She quickly added waving her hands in front of her nose.

"It's incense and essential oils diffusing" Laura replied.

The room was candle lit and big fluffy pillows sat around the floor.

"What are you doing?" The 11 year old asked incredibly annoyed "And why do I have to be here?"

Laura sighed heavily and dramatically "I want to try something out and I need you to be part of it. This is a two person thing…I need a partner"

"You are so weird!" Chelsea said.

"Just help me out sis!" Laura pleaded "I really think this is going to work and if it does, you're going to love it!"

Chelsea saw something in her sister's eyes. A definite sincerity and a genuine desire for whatever she had in mind.

"UUUGGGHHHH! Fine…whatever! What are we even doing?" Chelsea said coming into her older sister's room further.

Laura closed the door behind her little sister, giggling excitedly.

Laura eyed her sister up and down quickly "Yeah…perfect" she mumbled.

"Don't creep me out okay…I agreed to hear what you want but I can still walk out of here" Chelsea said full of tween attitude, folding her arms over her flat chest and tapping her foot.

Laura was 22 and quite the hippie chicken free spirit while her 11 year old sister was much more traditional.

Laura was 5'10 with long straight blonde hair. She was curvy in her build with large breasts and full hips.

She was wearing jeans and a loose white top while barefoot. She sat down cross legged on the floor and pulled her hair back behind her ears.

Laura patted the floor in front of her indicating that she wanted her sister to join her.

Chelsea grabbed a fluffy pillow to rest her back against and she sighed heavily and rolled her eyes as she sat.

Chelsea was 5'4'' and a pure ginger. Dark red hair, pale freckled skin and blue eyes that matched Laura's.

She had her hair in twin braids and was wearing a green long sleeved tee shirt, black leggings and white socks.

"Have you ever heard of astral projection?" Laura asked.

Chelsea furrowed her brow "Not really" she admitted.

"Okay, well essentially it's an out of body experience. Where your consciousness leaves your physical body and can travel around" Laura explained as her hands gestured wildly. "I think I've figured out a way to do it…and I think I can get you to do it too"

Chelsea started to get up but Laura grabbed her wrist.

"Wait! Hear me out! It doesn't hurt! It feels so amazing! I think I did it but I want you to try with me to confirm that it's real! The worst that happens is that you waste a few minutes. The best is mind blowing and life changing experiences! Come on Chels! I need your help" Laura pleaded.

Chelsea stared at her sister long and hard considering her choice. Laura pleaded "please,please,please" while holding her hand.

"Fine…I'll do it. I'm bored anyway" Chelsea finally said, sending her older sister into overloaded joy.

Laura drummed her feet happily and bounced. "This is so awesome!" She squealed

She poured tea for both of them as she played gentle music from her phone "The key now is to relax and concentrate on freeing yourself. Visualize your spirit leaving your body.

Laura added a metronome and she began to talk softly. Chelsea did start to feel super relaxed.

"Now look into my eyes" Laura instructed her sister.

Chelsea did as she was told.  "You are relaxed. You are at peace" she kept repeating. "Close your eyes and let your spirit be free" she said and Chelsea did.

With her sister peacefully out, now Laura's self hypnosis kicked in. She felt herself drifting off.

Chelsea felt light; lighter than air. She heard her sister's voice calling out "Chelsea! Come on, you're so close! Come to my voice"

Chelsea realized she couldn't move. She couldn't figure out how to move. In a panicked voice she cried out "I can't find you Laura!"

"Relax! Breath in and out and listen for me" Laura started to hum calmly.

Chelsea settled down. She almost lost it as she felt herself start to lift up. She was rising. She was floating.

Suddenly colors erupted. Light streamed in and she saw Laura's smiling face "Laura!"

"Chelsea! It worked!"

"This is amazing Laura! I feel so free!"

Laura pointed down and Chelsea gasped. Below them, she saw the two of them sitting on the floor. Both of them looking peaceful and not moving "There's 2 of us!?!"

Laura nodded "We're here as our spirit selves…free of our physical selves! We did it. We are in the astral plane"

Chelsea lowered herself down to examine herself from an outside perspective. She looked over both of them and everything in the room. Feeling bold she floated through the ceiling and found herself in their kitchen.

"We can go anywhere like this…it's like we're ghosts"

"Yeah, kinda" Laura laughed. "I've got another idea and it might sound crazy but I hope you're willing to try it; it's the other reason I wanted you to help me out today" Laura baited.

Chelsea was now curious "If this is possible I have to listen"

"Well…I was wondering if you would want to see if we could switch bodies like this?"

Chelsea was shocked and her face showed it.

"Since we're free of our bodies, I think we should try to re enter each other. You go into my body and I'll go into yours. If you're willing to try it that is"

Chelsea was shocked "is that even possible?"

"When I did this before, I floated to my own body and when I got close I felt my spirit get pulled in. My theory is that if you go to my body and I go to yours, our bodies will pull in whatever spirit is closest and trying to enter"

"So when I wake up…I'll be you?"

"Yeah…it'll be your spirit in my body" Laura replied.

"And you would be me?" Chelsea continued.

Laura nodded "Yes…"

"So I would be in your body and everyone would see me as you. I could drive! I could drink!" Chelsea said.

"Well mot together haha but yes. The world would see Laura Olson not knowing it's Chelsea Olson in that body"

Chelsea nodded "Let's do it!"

Laura squealed happily "Worst thing would be that we just don't get pulled in and then we go to our own bodies"

Chelsea started to drop lower. "What's going on?"

"You can only stay outside for so long before you have to return to a body…aim for mine!"

"Okay!" Chelsea said, pointing her head towards her sister's prone figure.

"Good luck! I'll see you on the other side. You'll be my big sister haha!" Laura called out.

Laura watched in fascination as her sister's spirit swam closer and closer to her body sitting cross legged on the floor.

Chelsea's spirit hovered momentarily then, was simply gone but Laura's body lurched and drew in a deep, gasping breath.

"Oh my God I think it worked!" Laura thought gleefully "I think she's in!"

Laura flew towards her own body but it didn't feel the same as it had the time she had done this before. The last time, she had gotten close and she felt a pulling sensation. Now, she didn't feel anything like that. It was more like she had come to a closed door.

Spirit Laura turned around and saw her little sister's body sitting there so peacefully. It was calling to her. She could feel the body searching for a soul.

Laura let go and felt her spirit being pulled toward Chelsea's body.

She made sure she kept her eyes open as she got closer and closer. Then, she was sucked forward and colors swirled all around her and she gasped for breath like coming up from being underwater.

Chelsea made her way toward her sister's body. She could feel a pull, the body searching and reaching almost blindly for the aura coming near.

As she got closer, she felt a hyperfocus hit her. Every little detail of her sister's face and body became apparent just as she felt grabbed and yanked into her body.

Colors swirled and she gasped for breath. She almost choked on it as she felt air hit her lungs. She felt her heart pound. Blood rushing to her temples all accompanied by a high pitched whistle.

Then, it was quiet.

Chelsea took in a slow, deep breath. She smelled the incense and it tickled her nose.

But, something also felt very different. She felt heavy. She felt big. Bigger than normal. Bigger than she should be.

Taking in another breath and holding it, she felt an undeniable weight on her chest. Just taking inventory of her body made her aware that her ass felt larger, everything felt too big; like she was wearing a pair of shoes that were several sizes too large.

Chelsea's eyes fluttered. They didn't want to open. Her hands shook but slowly, her muscles began to respond.

She felt her chest heaved and her shoulders lift as her eyes finally opened.

Chelsea's heart took off pounding in her chest upon opening her eyes.

Chelsea's brain overloaded and she froze. She was staring at herself. Not a mirror. Her actual body was in front of her. Breathing and just starting to stir.

Laura felt cramped and tight. It felt like she was wearing a wetsuit and shoes that were 3 sizes too small.

She felt light though, smaller too.

Her brain kicked in "Of course! You're inside Chelsea's body! We actually did it!"

She tried to quickly gain control of her body "Chelsea must be freaking out"

Laura's muscles twitched. Her eyes fluttered. Senses and sensations started to come to her like the fact that she knew her hair was in twin braids lying on her shoulders.

Her heart was pounding in joy and anticipation. Her eyes fluttered and her mouth twitched as Laura managed to gain control of her facilities.

Chelsea stared straight ahead watching her body twitch and start to move around.

She jerked when she saw her eyes open.

"Chelsea?!" Laura cried out loudly in a higher pitched voice

Chelsea's mouth quivered, she looked to be on the verge of tears but now she nodded and weakly croaked out "Laura?"

Laura nodded and smiled wildly "We did it sis! Look at us! This is abso fricking lutely amazing! I'm in your body and you're in mine!"

Laura's arms and legs weren't fully cooperating yet as she tried to unfold herself clumsily kicking and lurching until she made it to her knees and managed to hobble forward to hug her little sister inside her body.

Chelsea was freaked out. She was getting a hug from herself. Her skinny self was hugging her while she heard her own familiar voice whispering calming words.

"We'll stay like this just long enough to recover then we can do it again and swap back okay…but it takes a few days for the spirit to rejuvenate enough to go through the journey again"

Chelsea nodded feeling better. She was calming herself down and she now wrapped her arms around her sister and leaned into the hug "This feels so off…I'm soft and you're all bony and skinny"

"Um you're also now 10 years older than me too!" Laura pointed out to her sister.

Laura broke away and stood up, stretching out her back and legs as she rose up.

"God this is so weird!" Chelsea said, seeing herself at that angle.

Laura just laughed at her.

Chelsea looked down "Oh God! I've got boobs!" She giggled nervously and blushing.

Laura put her hand out and helped Chelsea to her feet.

Both were surprised by their new dynamics.

Laura was weaker. Chelsea was heavier and had to mostly get herself up off the ground.

Chelsea's face finally showed joy as she rose up higher and taller; 6 full inches taller than her sister in her little kid body.

Chelsea saw how mature and developed she was and a bit of pride swelled in her. Those shoes didn't feel so loose now.

Laura's heart skipped a beat seeing Chelsea tower over her. She realized a power shift had inadvertently occurred between them.  For as long as they were like this, in each other's bodies, Chelsea would be seen as being in charge. Maybe she would even begin to act and think more like the body said she should.

Laura shivered. She didn't feel as tight and cramped all of a sudden. The body seemed to fit her better.

Chelsea patted her body down to get a better look and feel for it "Wow…" she muttered embarrassing her sister even further.

Laura went to.the mirror in response. "Sure…I might be smaller and younger. I have absolutely no curves like this but; I love this red hair. The eyebrows…freckles…" Her stomach fluttered. "This face..this body…" she thought, still seeing her sister posing in her body behind her.

The two sisters went downstairs for dinner. They could barely contain their laughter dealing with their parents, knowing their personal inside joke.

The next several days, the two lived each other's life.

Chelsea went to college. She drove, she worked, she hung out with her sister's friends.

Laura went to middle school. She went to soccer practice and was dependent on others for rides when she wanted to hang out with Chelsea's, now her, friends.

Each day felt more natural to them. They grew more in tune with their new dynamics and body. They even got into role play with each other. Both played up their new position much to the delight of both of them.

After a week, they got together in Laura's room. They set up everything like the first time and sipped their tea trying to meditate and relax.

They even wore the same clothes to try to make sure everything was right. Laura was talking but it wasn't working so Chelsea took over and both of them started to relax more and more.

 "The key now is to relax and concentrate on freeing yourself. Visualize your spirit leaving your body.

Chelsea set up a metronome and she began to talk softly. Laura did start to feel super relaxed.

"Now look into my eyes" Chelsea instructed her sister.

Laura did as she was told.  "You are relaxed. You are at peace" she kept repeating. "Close your eyes and let your spirit be free" she said and Laura did.

Chelsea was shocked. She has taken the lead. She had put her sister out, not the other way around.

But now she needed to concentrate on herself. She focused and was soon dropping off. She felt her spirit become free.

Laura felt her spirit rising up. She looked down to see herself emerging from the top of her crown of red hair. "Those twin braids…" she thought wistfully "I do love that look"

Something seemed different to her already. Her spirit didn't feel the same. She couldn't comprehend or explain how her soul could feel differently but it did.

She looked at her original body. She saw the shoulders slump and the head droop.

Laura was shocked to see her sister's spirit emerge. She knew what was wrong but she had no explanation for it. Frankly, she was absolutely shocked.

Chelsea felt her spirit rising to break the bonds of the physical plane.

The colors swirled but as she began to focus, she wanted to scream out in confusion.

She saw her sister Laura hovering, but Laura's spirit now looked like her. Laura's spirit was now 11 years old with no curves, red hair done in twin braids with pale freckled skin.

A quick look at the shock on Laura confirmed that she was just as surprised as Chelsea was.

Chelsea immediately looked at her own lifting spirit. She didn't have to look far to see the blonde hair flowing. She had her sister's curvaceous body even in spirit form.now.

Their spirits had adjusted over the course of the week and had turned into a match for the body they had possessed.

"Chelsea?!?" Laura asked

"Laura?!?" Chelsea responded "What happened to us?!"

"We changed! Our, our spirits…they adjusted to conform to the body. Living each other's life changed the spirit to fit it" Laura said.

"But if we go back to our original body, then it should reverse right?" Chelsea asked.

"Yeah…" Laura replied "Why wouldn't it? Once I'm back in my body, I'm sure my spirit will adjust back to my real body and yours will too"

Chelsea nodded, satisfied with the explanation "This is actually really cool though" she admitted "I mean…what if. What if we really did become each other?"

Laura couldn't suppress her smile. If spirits could blush, hers would be. "I know right! I mean, it wouldn't be that bad"

"Oh really?!" Chelsea prodded her big sister "You would be okay with being my little redheaded sister forever?"

"I liked having your hair!" Laura said defensively.

"Well I liked having your body…especially being your height" Chelsea said.

"And my age?"

"Of course…who wouldn't want to be 22 instead of 11?!" Chelsea shot back just as she felt her spirit start to droop.

"Oh! It's time…time to go home…" Laura said with a knowing look.

Chelsea gave a nod and lined her bigger spirit up over her small body.

Laura flew to her original body "I feel so small looking at myself from this size spirit. I guess I've gotten used to being small this week"

"See you on the other side" Chelsea said as she felt her spirit being tugged into her body.

"One last shout out to my former big sister" Laura said, feeling the strong pull of her body on her spirit.

They entered simultaneously. Both feeling the confusion washed over them. The grasping and gasping as they reconnected to their body.

Chelsea felt squished, cramped and compacted into her small body while Laura felt like she was swimming inside hers.

They both jerked and twitched. Their eyes fluttered open.

Chelsea immediately crunched forward moaning "Dang this little body is so tight!"

Laura looked uncertain, a little fearful and lost "Well mine feels way too big"

Laura grit her teeth as she felt a full-body shudder run over her. When she stopped moving, everything looked a little different than it had. The room looked…bigger. Her sister, sitting cross legged across from her looked…her head looked higher up.

Laura looked down. Her white top was naturally loose but it looked and felt roomier somehow.

Chelsea was straining. Her body felt tense, like a coiled spring. She shuddered "Ohmygod" she muttered at the feeling of release that accompanied her shiver.

Laura had been looking at her sister's calves. The black leggings there were sitting at the top of her white socks. As she watched, the leggings pulled up exposing a ring of skin.

"My body doesn't feel as tight but dang my clothes do" Chelsea remarked.

She put her arms out and sure enough, her sleeves were tight on her arms and the cuffs of her long sleeves were well back from her wrists.

Laura was shaky and unsteady getting to her feet. Her jeans felt loose as she stood.

Chelsea was also getting up. She felt disoriented and even a bit dizzy.

Laura gasped.

Chelsea jumped.

They both looked shocked.

They were the same height.

Laura took a cautious step closer, standing up straight. Chelsea straightened up in response; sure enough, they were eye to eye.

"What the…?" Chelsea said dreamily.

Laura just furrowed her brow and looked very concerned.

Both of them felt it. They shared a look and both shivered again, losing sight of the other as they shook.

"AAAAAAHHHHH!" Laura screamed as her focus returned and she found herself 6 inches shorter than her sister.

"AAAAAHHHH!" Chelsea jumped and answered her sister's scream with one of her own "Whyareyousoshort?!" She rushed out.

"Whyareyousotall?! Laura immediately replied. Their eyes widened.

"Our Spirits!" They yelled in unison.

Laura's blonde hair began to redden. Brightening up as it changed color, she turned to the mirror in time to.see her eyebrows change from blonde to red as freckles began popping out all over her face.

"Ohmygod! Instead of our spirits changing back, they're making our bodies change to match them!" Laura said.

Chelsea's jaw dropped. Her hair was still in braids but she could see in.her peripheral vision that they were lightening to be blonde. "I guess you really are going to be my little sister" she said to Laura's shock.

Laura's nose shrank down and her lips thinned as the years drained away, taking maturity from her face; she was looking like a kid in her small features.

Her chin weakened, her jawline softened and her cheeks lost definition and rounded as even her ears got smaller.

Chelsea now leaned down to get her face closer to her sister's. Her mouth hung slightly open as her facial features began to change into Laura's.

Her nose grew larger along with her eyes. Her skin cleared up, no more freckles as her ears grew out.

Her lips plumped as her face matured. Her eyebrows lightened from red to blonde to match her hair. Her jaw and cheekbones became more prominent as did her chin as she now had the face of a young woman instead of a pre-teen.

They turned and faced each other with matching expressions of awe.

Chelsea's chest began to grow as Laura's shrank away.

Chelsea's shirt was already tight by her growth spurt but now, it really became uncomfortable as it strained down her suddenly large breasts.

She had to get it off. She lifted the tight tee and her massive breasts spilled forward giving her now flat sister quite an eyeful.

Chelsea's breasts swayed as she struggled getting the very small, very tight tee off her growing body.

She let out a sigh of relief once freed and she tossed her shirt aside and stood top less for the time being.

Laura was suddenly self-conscious of her prepubescent body. Her flat chest. Her now useless bra and way too large top hung on her. She could feel the heat coming off Chelsea's chest, they were so close to each other.

Laura's arms and hands now quivered as they shrank down and she watched Chelsea's take on her characteristics as her arms and hands and her exposed stomach all changed.

Laura felt a quiver shake her hips and ass as they suddenly narrowed and sucked inward.

Her jeans didn't stand a chance and they simply dropped to the floor.

Laura yelped as they fell and she did a little awkward shuffle, bringing her legs together as her thighs slimmed way down.

Every curve was leaving her body as it regressed from 22 to 11.

Skinny coltish legs shakily stepped free of her jeans.

Her feet were too big and stood out, but not for long as she felt them shudder and they began to shrink backwards, getting smaller, changing into Chelsea's tiny feet.

Chelsea's leggings were now put to the test.

As her hips and ass grew, her small panties were sucked up in between her growing cheeks.

The leggings pulled skin tight as her thighs grew and her calves thickened.

She stepped on the ends of her socks, pulling them off and freeing her feet just as they began to grow.

They spread out as they widened and her toes plumped outward.

Looking down, both of them watched their feet change in tandem

Laura's feet were shrinking as Chelsea's grew. Their toes changing shape from one to the other.

With a slight bounce and bump as their heels and the soles of their feet swapped, they realized that they had switched bodies with each other.

"Chelsea?" Laura said in a soft, shaky voice.

"Laura?" Chelsea replied, a bit more lift in her voice.

She chuckled nervously and patted her huge breasts "Holy shit…these are real. They're really real and they're mine"

Laura grabbed for her hair. She pulled on it, feeling the tug as she pinched the red strands between her small fingers.

Laura looked back to the mirror and seeing that face reflected back, she smiled, genuinely happy to see it. "Maybe our souls knew…they just knew. That's why they changed and then…they made it complete"

Chelsea nodded and smiled "Pretty smart way to think about it little sis"

Laura's jaw dropped in mock shock "Little sister?!"

"Well…you are!" Chelsea said, looking down her nose at Laura.

"Are you going to cover those things up?" Laura sighed.

"Give me your shirt and bra and yes I will"

"We're not your room! You could literally walk 3 feet to your dresser and get out a new bra!" Laura ranted.

Chelsea just shrugged "I want those"

"You already got those" she pointed at her big sister's large chest before flapping her empty bra and huge shirt.

They both laughed but Laura pulled her clothes off and ran out of the room.

When she returned, she was dressed in clothes that fit her skinny, little kid body.

Chelsea had also gotten dressed in the clothes that Laura had so hastily discarded.

"This feels so right" she told her little sister.

"I absolutely agree" Laura replied.