The beam hits your crotch, and you begin to feel a tingle as your cock begins to harden. Strangely enough you begin to feel a pulling sensation in your testicles. Looking over at Becca you notice a glazed look on her face, as her yoga pants, once flat as a board, begin to bulge.
“Oh shit…” you say realizing what is happening.
“What the fuck is going on?!” says Becca seeing the sudden bulge in her pants forming.
“You’ll see in a few seconds” you say as the last vestige of your balls pull into your body.
Against all decency, you unzip your pants to witness the transformation, seeing what is left of your ball sack begin to split in two, as your nub of a penis is engulfed by your growing foreskin.
Becca following suit, lowers her pants to her ankles. Seeing her once beautiful flower becoming a veiny cock. A painful sensation hits her, as her lips close up for business, and her testicles drop.
After what felt like an eternity, you are now the proud owner of a 21 year old pussy.
Becca still stunned, stares at her throbbing erection.
“Feels pretty fucking good doesn’t it?” you say breaking her trance.
“Holy shit... you were right, this thing actually fucking works” she says staring at the device that just took away her ability to bear children.
"Told ya!! Pretty fucking crazy right??!! you exclaim.
"Oh my god, Mike's in the other room and here I am with this thing hanging out!!" she says hurriedly pulling her pants up. Her attempts at hiding her new appendage completely nullified by the ever present protrusion in her crotch. “So how do we swap back?” she asks worriedly.