I adopt this oc from Natsukis_Commishes

Timber Night Wolf is a decedent with the lycane pony, and have the ability to transform into a beast like his mother Norah Night Wolf. But as a hybrid as a alicorn from his father side, it was hard for him to achieve that form at all. His friend Tira Bright who happen to be able to transform into a dragon pony do with her mother being one, is able to help Timber to find a way to reach the beast form. When she made a potion that should able to boost his magic, not only he was able to become a beast, but it sort of change his gender as well. Now Timber was stcuk as a female whenever he transform into a beast, at first it was embarrassing, but in time she will get use being a girl.