You went to sleep with your wife, Selina. When you woke up, you felt an extra blanket on you. When you opened your eyes, you realized it wasn't a blanket, it was a large fox tail. When you looked at Selina, you realized that the tail was her's. She also has fox ears, orange hair, and sharp teeth. She wakes up and rolls over to look at you, not realizing her transformation yet

Selina: yawn Morning. How did you sleep, honey?