Mark turns toward Rachel and begins to pout.
"Awww, don't pout my little sexy kitten, you are better off as a girl anyways. Now, what is next to add on to your gorgeous body?" Rachel questions. "I know," she exclaims, "we need to make you love that pussy of yours!"
Rachel licked Mark's clit one last time and sprinted from the room. She returned with a milk chocolate penis and balls, which she slid down her throat in one smooth motion. Mark's eyes grew wide, fascinated by the openess of her throat, and suddenly feeling his own throat and pussy gape hungrily for that penis.
Rachel rubbed her own clitoris, thrashing in pleasure as it grew and grew. First an inch, then two, then a third. Mark's leg spread wide involuntarily as her girlfriend moaned, giving birth to tiny testicles.
Rachel pounced on Mark, thrusting her tiny manhood against Mark's slit. At first, the penis was so small that it barely flicked her clitoris, but it swelled in seconds!
Mark gasped, tears streaming from her eyes as Rachel's penis split her virgin vagina. Rachel's testicles ballooned into plums as her cock achieved cucumber proportions. Mark's legs and arms clung to Rachel's body, which became more and more manly as they thrust together.
Suddenly, Rachel's eyes flew wide open as the pair locked tightly together, gasping in agonizing pleasure as former girlfriend's seed exploded into former boyfriend's womb.
Locked in each other's embrace, the two lay motionless for a time until Mark felt a dull ache grewing in her abdomen. Rachel felt something press against his rock-solid abs and looked down to see Mark's belly swelling into full-blown pregnancy!
"Holy crap," Rachel screamed, "it's working on your uterus too!"