Dad was slowly beginning to panic. He had no idea he was turning into a bat. He suddenly gasped, as he felt his body get a little bit skinnier, like he was losing weight. Then he started running round and flapping his arms, like he often did when he was worried. Then, he started to fly, his clawed toes lifting off the ground, and his pants slowly dropped off, showing his undies, and also showing patches of thin, bristly, brown hairs forming on his legs.
"Wh-what's... happening to... me?!" Dad squeaked.