"Actually... Naaaah, you made me sound ridiculous in front of all your friends so I changed my mind" Jen smirked, as she had a wonderful idea. A brilliant, but devilish idea. "For your transformation, you'll develop a womb. It'll be magical in nature, connected to your ass and capable of bearing multiple babies at the same time even from different people and being impregnated multiple times in a row." She definitely pulled from one of her hidden fetishes for this one, and Jen was riding a wave of inspiration.
Meanwhile, Kyle and his friends all went dead quiet, falling pins audible in a mile radius as they payed close attention to her wicked cursing. "All babies will be safe and healthy as well as you, and each new one added gets you hornier, more sensitive, and bigger all around: Hips, chest and especially belly. No size limits, you'll grow way beyond any woman would be able to! The babies develop within a week but just disappear harmlessly with a extremely intense orgasm that you cannot avoid by any means. " They could practically hear Jen touching herself through the phone as her fantasies overwhelmed her, but any horniness this could've brought onto the boys fell short due to the sadistic, perverted destiny she was describing withing those moans and gasps.
"Please, stop alrea-" "Shut up!" Jen shouted. "You'll lactate a lot, but your size won't necessarily match your production rate as they'll grow way slower then the rest of your body.Your breasts will be extremely sensitive and leak all the time. Not only that but your voice will be way more feminine and your hips, butt and tights big as can be..." At this point, Jen had already started working her way to orgasm again. "And not only that but you'll gain weight as well with each pregnancy so that you'll be both fat and extremely pregnant all the time. Now for your dare..." Jen toyed playfully with her pussy, juices leaking and soaking her panties. Kyle could barely hear the moans as he swore the swelling in his belly had already begun even if that wasn't the case.
"You'll fuck each and every one of the men in school through the course of the week, getting impregnated by each of them. Their cocks will grow three times their regular size inside of you, fucking your womb and causing you both extreme pain and pleasure. Once you finish and orgasm all your babies out, you'll very slowly turn back to a more natural size, but not lose your transformation completely. Everyone will remember this incident, and never believe it was me who did it upon you." Jen orgasms, but the boys just don't care. It's so... Undeniably evil of that was all true, so disgusting and twisted and yet... Kyle always had such a nice ass, didn't he? His body was just so... Fuckabke right? And... He'd have their babies right? At least not for real...
There are rumors that your dick grew inside Kyle's fat ass...