On Halloween night, the four guys were on the streets, amidst a crowd of colorfully costumed children screaming and playing around.
- Come on Steve, where is this party you told us about! We’re gonna be late!- said Paul angrily, while slapping Steven on the back of the head with his prop bow. Always a fan of the lord of the rings, he decided to dress up as Legolas.
-Ow, man… Stop that, it hurts…- answered Steve while pulling out his phone from the pocket in the vest of his classical Dracula costume. –Here, the house should be right around that corner!-
They saw the house, a dark, small building with a crooked picket fence, and dim flickering lights shining from its windows.
-There it is…-meekly announced Steve, while Paul looked down at him, judjingly.
-WOW! This is really creepy, well done Steve, I like this place!- cheerfully intervened Ronald, dressed as a half naked man-taur, fake horns on his head and his own imposing and a little overweight physique completing the costume. –Come on, let’s get in!- announced while giving Steve a pat on the back.
-I still think we should have stayed home watching classic Italian horror movies- mumbled Brad, always the downer, his costume slapped together at the last minute, consisting in a rubber snake mask from an old cartoon with regular clothing underneath.
The quartet came to the front door, and rang the bell. Immediately, the door creaked open, revealing only darkness inside, and a woman sitting in a deep armchair.
-Come in, my dear guests, my name is Nahema, and I bid you welcome.- said the woman. She was half-naked, apparently dressed as a demoness, with their breasts clearly on display. The three guys gulped.
-I’m sorry miss- suddenly said Steve, while diverting his gaze, realizing he was staring at the woman’s perfect chest – We didn’t mean to… intrude-
-Yeah, sorry madam- added Ronald. –Maybe we should go… Nice house though, very spooky- ended with a smirk, while taking a last peek of the woman’s chest, unable to stop himself
-Yeah, I think we should go- added Brad, eager to escape the awkward situation
-Speak for yourselves! I think I might be right where I belong! What do you say If we have a party of our own, miss?- asked Paul with a sly grin on his face, while walking towards the woman, still sitting with her legs crossed.
-Yes, why not- answered Nahema. A strong gust of wind suddenly blew across the room slamming the door shut.
-What the…!-asked a startled Paul, turning back to face the woman. – Wow, you startled me for a minute…-
-You are all welcome to my party- said the woman, with a sultry voice dripping sex. –But I’m afraid your costume are not quite fit yet.
Another gust of wind, ran across the room, a shiver running along the four guys’ spines.
Then, it began.
Paul was the first to notice something was not right, as the room began to get bigger around him. His friends, upon which, he towered just moments ago, suddenly sprung to the height of giants around him.
-Shit, what’s *cough* happening!?- said in a worried tone, while his voice jumped up one, than two octaves, resulting in a squeaky, cute alto. His height decreased from his original 6’4’’ to just 4’5’’, while his hair grew longer and longer, almost touching the ground. His Legolas costume began to twist and morph shrinking even more than him, resulting in a small leafy top and a pair of panties. Paul began to touch around his new body, feeling his bones cracking, his hip getting larger and his shoulders narrower. –Guys! Help!- he cried, while he shrunk even more, now a tiny 3’8’’. Meat started growing on his chest, developing in two gigantic –for his size- breasts, and his virility shriveled up in his groin with a loud *slurp*. Lastly, his ears elongated and became pointy, while a pointy, floppy cap appeared on his head.
The other looked at him cup his new chest, when  Steven felt his own changes began. His felt a tingle in his fingers as they elongated to ridiculous proportion. He closed his hands, and when he opened them again a thin skin membrane stretched across his fingers.
He began to scream in terror, as his voice raised in pitch rapidly to ultrasonic levels, causing his friends to cover their ears, -Stop! Steven, STOP!- shouted Brad, and Steve closed his mouth with a snap, not wanting to hurt his friends. He got slightly taller, from 5’9’’ to 6’2’’, as his skin became paler and paler. The cape of his costume attached itself to the back of his arms, transforming in another skin membrane to complete what were now unmistakably bat wings. The rest of his costume contracted, becoming similar to a one piece, swimsuit. Small breast grew underneath it, while his ding-dong disappeared inside him, becoming a full female reproductive system.
While all this was going on, Brad began panicking, and rushed to the door. He began pulling and banging on the door, trying to open it, but the door just wouldn’t budge. Nahema looked at him annoyed at the ruckus, and his hands suddenly went numb. The numbness spread upwards along his arms, as they fell useless at his sides. –We didn’t mean to intrude! Let ussss go pleassse!.- he said, with an increasingly hissing voice, his upper teeth morphing into fangs. He looked at his arms with terror as they began shrinking, more and more, making him look freakishly disproportionate, like a man with the arms of a doll, until they disappeard completely. His skin became scaly and shiny, as his hair clumped together in dread-like fashion. The hair began squirming, until each dread popped open revealing a hissing snake inside. Brad face began to twist, getting more angular and pointy, his cheekbone rising, as he turned around and began walking toward the woman, maybe to attack her. Nobody ever found out, as his legs suddenly clumped together, causing him to fall flat on his face, as he tried to use his no longer-existing arms to stop his fall. His legs than became scaly and elongated themselves in a long snake like tail that began to swing wildly, Brad unable to control his new appendage. Lastly, a pair of very big – and decidedly non reptilian- breasts grew on his chest, causing him to rise from the floor.
Ronald was frozen in shock, but he couldn’t not notice how his belly became extremely long, causing him to become like 8’ tall, but with normal sized legs. He wobbled a few seconds, trying to keep his balance, but he fell forward. He felt adrenaline rush through his veins, bracing for the impact with the floor, when the fall was stopped by two new horse legs that has sprung from his torso. He looked back at his rear and he say a horse back slowly getting covered in brown fur, but his view was soon covered by strands of long hair covering his vison. He felt a sharp pain on his head, as two horns sprung from it, while a pair of boobs began growing on his chest, bigger and bigger, stopping at a giant G cup.
-These are what I call Halloween costumes – said Nahema, looking at his new creations. – Now, we only have to wait for my other guests…- She had just finished her sentence, when the doorbell rang, and with but a glance, Nahema caused the door to open.
-Welcome- she said – Woud you like to join our little party?-