Jason thinks for a while, then starts grinning maliciously. "I choose to copy my own change onto Jenny!"
For a small moment, nothing happens as your heart seems to leap into your throat. "WHAT?!" you yell, but Jason just smiles. "I'd take those off before you change, if I were you..." he says, pointing to your pants. "They'll get awfully tight in a few seconds."
Realising he's right, you scramble to take off your jeans and panties as you start to feel a tingling in your crotch. For a few seconds your vagina, still wet from your adventure with Jason, is the center of attention. Then, slowly but surely, your clitoris starts to grow. You let out an involuntary moan as it brushes against your pubic hair while it slowly starts to develop a foreskin and a small hole at the tip. It doesn't stop growing until it's a full 30 centimetres long and throbbing with arousal.
Although appaled and shocked by the change, you can't help but notice you are turned on by it as well, and your pussy starts getting wet underneath your new equipment. The elfgirl formerly known as Jim stares at you hungrily and licks her lips.
Jason hands you the dice, still grinning all the time. As you take them and roll, a thought enters your mind: "Does the game perhaps have influence beyond what the messages say?"