Kat gasped and sat up.  She was in bed.  Beside Bill.  Human.  She looked down at her breasts, and laughed.

Bill stirred, then smiled radiantly at her.  “Oh!  You’re back.  How do you feel?”

Kat kissed him ferociously, then rolled him onto his back.

After a round of frantic lovemaking with Kat topping her husband instead of the usual way around, Kat snuggled up to him.  “I was yours.  I lost my sense of... everything, after the first day.  How long?”

“You don’t know?” he asked, amusement colouring his voice.  “I could tell you anything, and you’d believe me?”

“You could tell me anything,” emphasized Kat, “and I wouldn’t mind.  Being your possession, that was all I could…”  She trembled against him.  “It was everything.”

Bill’s eyes shone.  “Will you be my toy again?”

“Yes,” Kat breathed.  Her tremors intensified.

“Why are you scared?”

Kat stared down at her chest, picked up his hand and placed it on her breast.  “You have so much power over me now.  That yes… was to all of it.”

He laughed then, and kissed away Kat’s hurt look.  “You’re scared I’ll make you a toy forever.”
Kat nodded, eyes shining.

“I won’t.  I missed you, kitty-Kat. I miss the woman who turned my world upside down just to show me it looks better that way around.  I want to go dancing with you as Billie or Bill or even William.”

“Oh!  So you wouldn’t… replace me?”

Bill laughed again, even louder.  “I do not think that’s possible.”

“What if I loved being your toy?”

Bill lifted a curious eyebrow.  “You were disappointed when I said I won’t change you forever.”

Kat nodded, closing her eyes.  “To lose myself to you… it’s so wrong.  It flies in the face of everything I’ve ever believed.  But it felt so perfect I cannot deny it.  I want to be yours, completely.”

Bill kissed her gently, once on the brow of each eye.  “Look at me.”  She did.  “If you are mine, you are my Katherine and my Kat, not just my toy.  Never just my toy.  I’m greedy, I want all of those.  I also want my temptress, my muse, and the woman who has dragooned my maids into setting up a spa in the solarium.”

Kat brightened as he spoke.  “Really and truly?”

Bill sat up, eyes tracing the curves of his wife’s naked body, ending at her toes with a grin.  “I’ve been looking forward to this spa day you promised.  Marie’s been giddy about it since you set her off, and was most disappointed that you were ‘indisposed’ the past two days.”

“Tell her the truth,” said Kat.  “I like her, I want her to know what I was.”

“What you were…  Do you know, I could tell?”

“That I was a breast?  That should have been obvious,” said Kat with a sarcastic tone softened by her fond smile.

Bill shook his head.  “The first day, you were my Kat, voluntarily reduced to the best stress relief toy ever.”  Kat purred at the compliment and the memories.  “But the next day… you were just a breast.  Your nipple rose to my touch, but never on its own.  Without your mind, it was just… a thing.”

“Call me your thing again,” breathed Kat, squirming.

Bill smirked.  “You are mine.  But you are not a thing.  You are a delightful woman, even when reduced to a breast.  I have no desire to reduce you to mindlessness again.”

Kat pouted up at her husband.  “Not even if I ask prettily?”

“It’d take more than pretty words.”

Kat looked around, found that the Egg was perched on a velvet stand next on her bedside table.  She picked it up and approached her husband as its glow grew.  “Something like a lovely a spa day with my bestie, Billie?”

Billie smiled as she felt her body change.  “I’ll need more than that.”

Kat ducked her head to plant a kiss on Billie’s breast.  Once she had Billie worked up and flat on her back, she propped herself up over the lovely woman her husband had become.   “Glorious lesbian sex then a spa day?”

“Closer.”

Kat tilted her head curiously.  “What else?”

“Use that to become a man, tonight.  Show me what it means to be possessed.”

Kat glanced to the side.  “With the disc?”

Billie let out a shuddery sigh.  “I need to know how it feels.  What it does to you.”

Kat giggled.  “Have we just made the inverse of the last deal?”

“It would seem so,” agreed Billie with a grin.  “Must be fair, then.”

They sealed the deal the best way.

Marie was waiting patiently for them when they finally emerged as Billie and Kat.  “Would madames like breakfast before we visit the spa?”  She made no comment on their nudity, or the fact that Kat’s breasts were twice as big as normal.

Billie and Kat shared a look.  “We would indeed.”

They invited Marie to share their food, but she smiled and politely demurred, as there was “so much still to do.”

“Do we not have enough maids?” asked Billie.

Marie shook her head.  “We could use one or two more if you’re going to be like this regularly.  A proper lady’s maid, at the least.  I know you’ve refused the idea before, Mrs. Katherine.  But if we’re to be seeing more of Billie, someone to help with dresses and makeup and such would be nice.”

“I take it you have a candidate in mind?” asked Billie with a grin.  “Oh, and tell the others, no formal names today.  We’re Billie and Kat.”

“Mrs. DaSilva’s not going to approve of that.  She chides us not to get too friendly.”

Billie frowned.  “Perhaps I need to have a word with my housekeeper.  I like seeing you smile.”

Kat giggled at Marie’s worried look.  “I’m not going to get jealous if you smile at Billie.  Or Bill, for that matter.  It’s okay.”

“Yes, ma’am.  I mean Kat.  I should go make sure everything’s ready.  See you soon!”

Kat and Billie enjoyed their breakfast, and then strolled casually to the solarium.  Marie was adjusting the shades to block the bottom halves of the windows, ensuring their privacy from prying eyes.  Kat nodded to her for her thoughtfulness.

Four of the maids were helping out with the spa day.  One had worked in a spa for a few years, another had experience in a hair salon.  The tiniest of the lot proved a talented masseuse, and grew more so when she accepted Kat’s offer to turn her upper body male with the Egg.

That the mistress of the house was willing to share the Egg with the maids caused quite a stir, distracting everyone from the spa day as she demonstrated.  Word spread, and at one point or another every maid popped by for a test run of larger chest or stronger arms, to much giggling and banter.  Kat and Billie joined in the fun, trying out the range of female shapes the Egg could manage.  Kat learned through trial and error how to get the Egg into a middle-state, one that would reduce anyone to a slender, almost androgynous girl.  Trying it on herself, she found that she looked much like Marie, and the Egg grew her to fit the younger woman’s uniform perfectly.

Kat then used the Egg to turn a now naked Marie as buxom as she’d been earlier, and guided her to one of the spa beds, winking at her playfully.  She wasn’t quite as good as Marie at helping keep things running smoothly, but gamely kept at it for an hour.

Both Marie and Kat were relieved to go back to their original roles, and giggled like schoolgirls afterward.

Eventually the day wound down, and the maids thanked Billie and Kat for letting them have such fun.

“Fun?” asked Billie.  “Except for Marie’s role reversal, all of you were working.”

The maids all agreed that they’d worked, but at things they loved doing.  Marie spoke for all of them when she hoped that they could do it again.

Billie nodded to Kat.  “I’ll delegate this to you.  You should have had more involvement in the running of the household long ago.  Mrs. DaSilva and the rest of her staff will answer to you.”

“Is that a perk or a chore?” asked Kat.

“Well, you’d get to work with Marie and the others more, so take it as you will.”

Kat grinned, and nodded to Marie.  “I’ll take it as a good thing, then.  Will you help, Marie?  I really don’t know what all you do.”

“Join us for a day or two, then,” suggested Marie with a twinkle in her eye.  “I can lend you one of my spare uniforms.”

Kat’s smile broadened.  “That might be... okay, maybe ‘fun’ isn’t the right word.  You all seem to work pretty hard.  But it would be instructive.”

Marie bobbed her head.  “I look forward to it.  Goodnight, Mistress Kat.”

“Oooh, I like the sound of that.”

They did eventually get dressed, in time for dinner.  Their dresses didn’t stay on long afterward.

As Kat approached the bed, Billie held up her hand.  “I was promised a look at male Kat.”

Kat went back to the velvet bag she’d been carrying the Egg in all day, and retrieved the magic crystal.  “How male?”

“Your call.”

Kat tapped the wide end of the Egg briefly, then added a little bit more.  As she moved it up and down her body, she gained a few inches of height and some breadth in the shoulders.  She pouted to see her breasts go, but grinned at what sprung up beneath them.  “Well.  Oooh, new voice.  How do I sound?”

Billie grinned.  “Sexy.”

Kat prowled to the bed, and once more topped her husband.

A few minutes later she was apologizing.

Billie hugged her tight.  “Don’t worry!  Really.  I had fun, and we can try again in a bit.  It takes practice to learn how not to go off so fast.”

Kat looked down at herself.  “Well.  Maybe I’ll need to get some practice in while you’re away at work next week.”

“I thought you were going to be a toy on my desk next week,” said Billie with a grin.

Kat’s eyes went very wide.  “Oh.  Right.  Mmm, I think the deal involved me doing that to you first?  See if being the helpless female instead of just looking at her works for you?”

It was Billie’s turn to look concerned.  “Ah, yes.  Somehow the prospect has grown a little unnerving, now that you’re bigger and stronger than me.  But a deal is a deal.  How did you put it...  ‘Take my legs, you fiend!’”

Kat giggled, and soon the dark void of the disc had consumed Billie’s legs.  “Mmm.  I do see the appeal.  You’re so... accessible like this.”

Billie levered herself up to look at her wife.  “You’re getting turned on by this too?”

Kat looked down.  “So I am.  Wow.  Talk about unable to hide it.  What do you do?”

“Think about cold showers, mostly,” giggled Billie.  She touched her pointy nipples.  “I like your version better.”

“Mmm, my pretty Billie isn’t allowed to hide those,” said Kat.  A moment later Billie’s arms were gone.  Kat stared down at her limbless, curvy husband.  “Oh.  Wow.  I want you so bad like this.”

“Not like I can stop you.”

Kat managed to last much longer the second time ‘round, enough to give Billie the orgasm she’d missed earlier.  The limbless woman lay panting under her muscled wife when they were done.  As Kat pulled her into a cuddle, Billie whispered, “Finish it.”

“Just a breast?”

Billie nodded, and managed a wavering smile as Kat approached her head with the disk.  “See you on the flip...”

Kat finished her work methodically, reducing Billie to a pair of breasts.  She played with them, and found that she could manage one more erection.  Using her husband’s disembodied boobs to get off felt deliciously wicked, and his crinkled nipples suggested that he agreed with her.

When she was done, Kat cleaned up the mess they’d made.  After tenderly washing them, she erased one of Billie’s breasts, and cuddled the last one.  “There.  I hope you have as much fun as I did.”

Kat tucked the breast into bed, then climbed in beside it.  She couldn’t get comfortable, so she carried the Egg well away from the bed and changed herself back to normal... after experimenting with several other levels of femininity first.  Lying down with a flat chest was comfortable enough, but too unfamiliar.

Kat sighed mournfully, and cursed herself as a fool.  Playing with the breast had been fun, but she wanted her husband back.  Badly.  And she had five hours left to go...

She cuddled her husband’s breast between her own, and eventually managed to sleep.

Hours later, she was dragged from sleep by the feeling of the breast trying to expand.  Shaking herself out of a dream where she’d been wrestling an anaconda, Kat hugged the breast once more then let it go.  Nothing.  She poked at it curiously, then checked the time.  “Oh.  Oh crap.  You’re stuck like this.”

Kat brushed the breast gently.  Apologetically.  Its nipple remained petulantly flat.  “I am so, so sorry.  You have to be so worried right now.  But you told me what to do, and I’ll do it.”

Kat activated the disc, and dropped the breast into it.  Just like that, Billie was gone.  She turned the disc off after contemplating her own jump into oblivion, and set it on her husband’s side table.

“Bother.  Now I have to wait another six hours.”

Kat wasn’t good at waiting.  Sleep helped, but when the morning came and Bill was still gone, she started pacing.  When Billie finally blinked into existence, Kat hugged her desperately.  “I am so, so sorry.”

Billie hugged her back.  “It’s fine.  I didn’t hate it.”

“Yes you did.  I couldn’t tease your nipple at all.”

Billie sighed.  “Okay, fine.  I don’t want to do that again.  Happy?”

Kat smiled at her, then handed over the Egg.  “Put yourself back to normal, and I will be.”

Kat jumped into Bill’s arms a bit too eagerly, and ended up half male.  “Whoops.”

“I think you’d make the wrong kind of desk toy, my dear.”

Kat blushed.  “Now?”

Bill nodded.  “I’ve got some work to do today.  I need my toy.”

Kat carefully returned herself to normal, then set the Egg on its stand.  She spread herself out on the bed, watching Bill with the disc.  “I am yours.”

And in moments, she was.  Completely, helplessly, wonderfully his.