Mark's Toy

 

 

 

It hadn't taken much to talk Zak into trying a XGEN pill.  He'd been on Zak's laptop, and found the web history on it.  He'd been hitting fictionmania, TG Stories, and other websites.  Seems that he had a perverted wish to become a  woman.  So, Mark set him up with a pink pill, which was modified to Mark's specifications.

 

Mark watched as Zak lost a foot in height, shrinking down to 5ft tall.  His ass and hips swelled out, giving him a large bubble butt, along with his breasts becoming the size of large cantaloupes.  His hair became long, and all his body hair fell to the ground.  Zak's nipples swelled and expanded to the size of large grapes.

 

Looking around in shock, Zak looks up at Mark...

 

"Wha...what's happening?  I feel..giggle...kinda funny n stuff...giggle.."

 

"Oh Zoe, it's perfectly natural to be a bit confused right now.  It's a ... side effect... of the pill."

 

Zoe nods, giggles for a moment, then wiggles her hips.  "I feel kinda itchy n all like between my legs... kinda hot n wet too... I'm tingling all over Mark... can you help me?"  Zoe moans softly as her fingers explore her new pussy.

 

"Sure can honey, get on all fours now, I'm going to slide my cock into your new pussy to help..."

 

"Ok!" giggles the new female. 

 

Mark looked down at the round ass that was now his roommates.  Smiling to himself, he slowly slides in his cock, causing Zak, now Zoe, to moan loudly.

 

XGEN pills were magnificent, they could be customized to do anything.. reforming DNA and flesh, and wiping the mind of most knowledge, making someone extremely fertile...

 

Even make changes permanent.

 

As Mark pumps into the mewling slut beneath him, her wide ass jiggling with each thrust, he slaps her ass, causing her to orgasm over and over. 

 

Mark was glad to have a new toy to play with!

 

Zoe screams in pleasure as Mark's cock floods her womb with cum... his sperm finding an egg...