You gasp as you realize that you used your magic incorrectly. You had meant to turn the farmer's wife into a milking cow, not use the magic on yourself! You feel your feet and hands become cloven hooves. Your ears grow out and grow black and white fur all over them. Soon your whole body is covered with the same fur. A ropey tail extends from your lower back. Your spine shifts, making you stand on all fours. Your legs and arms become cow legs. You feel your face lengthen, growing into a cow's face. Your hair sort of melts into your body. Soon you have the body of a cow. Suddenly you feel an odd sensation. You were fat as an elf, and some of that fat had to go somewhere... You feel something ballooning between your hind legs. You can't see, but you know what it is. The thing almost reaches the ground, and four teats hang from it. You realize you just grew an udder. "Oh no!" you somehow blurt out. You discover you can still talk! The farmer laughs. "Wow!" he exclaims. "You're gonna give lots of milk!" You can't believe it. The farmer and his wife chuckle and lead you out the room.