As the orgy wore down, girls either left leaving trails of cum behind them from the doors, or simply passed out with limp cocks drooling puddles onto their chests. Cum and discarded clothes were everywhere: it squished between Jen's toes as she walked. She was tired from fucking too, and decided to have a nap. Upstairs she found some more girls still lingering. Thankfully her room was clear and she flopped down on it. As she drifted off to sleep, Jen held her cock as if she was cuddling it.
She didnt stay asleep for long however. A churning in her balls and heat in her crotch woke her. She moaned drowisly from the feeling, but soon was fully awake as the heat was all encompassing. Jen doubled over on the bed, her hands gently cradling her golf ball sized balls...no wait her baseball sized balls. Jen gasped as she looked down past her cock to see her balls growing bigger. She watched as they grew to soccerball size before she was smacked in the face. Her cock was harder than she ever felt before. To her slight horror she watched as her cock also grew out, longer and thicker. It grew to a massive 6 feet long, and wide as her whole head. Her balls stopped growing once they reached half way to beach balls. Jen panted as she watched them stop growing.
Jen hardly had time to wonder what made this happen now before a wave of arousal passed over her. In no time she was stroking her cock as best she could but it was just so big. Stuggling she hauled the mass out of bed and downstairs, past the others. She made it too her back yard door and called back to all the girls left. "I need help cumming! Every come out and help FUCK me!" With that Jen heard the stirring of suddenly horny girls. Outside however, Jen realized her changes werent over.
Once she sat down on a comfy outdoor couch, her cock and balls pulsed again. Jen moaned like a bitch in heat as the expansion resumed. Her balls jumped up in size to large beach balls, resting on the floor, while her cock tower above her head at an astounding 14 feet tall. The girls leaving the house were only more turned on by this, coming up to rub the cock against helpless Jenny's member. One girl pushed her cock into Jen's mouth which she sucked without any hesitation.
The girls frotted with Jen for a half hour, each cumming multiple times in the process, their seed becoming lube. Finally, Jen moaned deeper and deeper as her prick twitched. A torrent of thick horse cum shot into the sky as a small river poured from Jen's pussy. It went so high the drops would rain down around town. The stream of cum lasted a minute: an eternity of an orgasm for Jen.
Once it was finisher her cock slowly went soft, stopping at two feet long. The girls were dancing in the rain of cum and Jen caught several globs as the fell, slurping them up.