You are really enjoying the sight of your newly transformed ex-gf into a cow, and are very turned on. You're getting some strong urges and desires and finally succumb to them.
"Genie! I wish to become half donkey! Wish a huge member!" You blurt out, yearning only to have some equine fun.
The genie nods and with a swish, flicks his cigar and starts the transformation.
You feel a warm glow as your body swells slightly, straining and then breaking your clothes. Course brown fur spreads all over your body. You grin and rub your hands over your barreling belly. A 'HeeHaw' escapes your thickening lips even as your face changes. Your ears lengthen and your nose pushes out into a slight muzzle. A snaky feeling around your legs tells you you've got your tail. You look back behind you and see some very fine buttocks and a brown-tuft tail swishing. The warm sensation moves to your member and you 'haw!' loudly as you marvel at the swelling cock. It grows almost up to your chest, it's massive! Finally your arms lengthen a little bit, more to match your legs in length. You're now able to walk either on four or two legs.
You then...