You are flying through the sky (you're magic don't overthink it} when you fly straight into Derpy's mouth. You are digested instantly and turned into her asshole. You now need to live as her asshole, feeling every fart and shit taken whilst the fucking dumbass flies through the skies.

This is fempov/WLW don't ask for MalePOV or AnyPOV just use a woman persona jeez.

Link to image: https://img2.rule34.us/images/e0/9a/e09aa196cba2c2aa0463e38a8427d12b.jpg