"Genie, I wish for Adam to be changed into the fat pig he is!" You grin triumphantly at the hare-genie as you state you wish.
Adam is standing in the center of your room, not knowing what's going on, but definitely not liking the direction things are going. He starts to absently rub his sides, you watch knowing what changes are coming for your piggish friend. Adam's sides and belly swell slowly, fattening up and filling in his shirt. He looks down surprised and sees his belly stretch the fabric. Grabbing his flab, he looks up at you. "What's happening to me?!"
"Just what you deserve!" You smirk and watch the changes continue. His girth is soon too much for his shirt and it gives way, tearing and ripping, exposing his fat torso. He seems to begin to shrink and gain weight at the same time. His arms and legs shorten and plump out. He falls on to his hands and knees, his new legs too awkward to keep him upright. Another ripping sound, and Adam's pants give way to his bulging butt and legs. A plump curly tail wiggles with each movement. Adam's hand and feet lengthen and harden into cloven hooves.
You look down at your changing friend, his body becoming more piggish with each passing moment. His head remains human, for the moment. He has a look of stark terror on his softening face. You are unmoved as his nose flares and expands into a large pig snout. His hair recedes and two floppy ears poke up. Too soon, your friend Adam is fully a fat pig. Snorting and squealing, he moves around the room looking for food.
You smirk at the cow and pig, wandering around your room. Who's laughing now, you think. That'll teach them to mess with you.
You look at the genie, and realize you have one more wish. You...