"In fact", she says, "I like this form so much that I wish you to have it as well." The genie stately replies:"As you wish, my mistress" and blows the smoke of his cigar over you, your intestines warping as you inhale it. Fine white hair sprouts from your skin, covered with large spots of black and growing out into coarse bovine fur. Your toes darken and shrink, quickly melting into two large black hooves on which you have a bit of difficulty standing. Your nose disappears into your face, which then stretches out into a large bovine muzzle with a huge tongue. Your ears slowly start becoming pointier and longer, turning into cow ears. You feel a familiar tingle going down your spine as a long black and white haired tail shoots out of your back with a puff of hair at the end, swishing back and forth to maintain your balance.
Then the more important changes starth happening...you watch as your penis and ballsack move into your body, leaving nothing on the outside but two huge groin lips, and breasts ballooning out of your chest just like her, with firm little nipples on top. Finally, your whole stomach feels like it's stretching as your abdomen inflate and gain teats, forming a fair-sized cow udder that jiggles as you move. Within moments, you have practically become a cowgirl exactly like her.
"How ya like my body?", she smirks.