"Hello there Billy...", Jenny whispered, approaching him.
"J-Jenny what are you!?", He studdered. He suddenly felt his member harden...
Jenny suddenly grabbed him and quickly ripped off his pants, reavealing his hard cock.
"Breed with me, and become my king..", She whispered, rubbing his cock on her new cunts lips.
And so they did it right there on the street.
What Billy didn't feel was that he was starting to turn into an alien like Jenny.
Billy started to moan as his skin is hardening into an aliens, while his muscles and stiff member get larger and larger, his skin turned jet black, his mouth warped into mandibles, and a flexible alien tail emerges along his spine.
Jenny gazes at Billy's new 22 year old body and feels her sex start to leak fluids all over," Now, let us mate in perfect union!", she roars with glee.
He inserts his cock into her over sized pussy and begins to rock back and forth, both of them moaning in unison, suddenly he feels him explode in Mary's vagina.
Soon after