Apple Bloom wrote a story about how her big brother Mac and Uncle Caramel are a couple of secret agents. And given what the story contained, Cheerilee wanted the couple to see what she made for themselves.
I'm a shameless neckbeard who has a knack for writing a LOT of smut. I have an Official Patreon page (Patreon.com/TheVClaw), and I also take commissions to help support myself as a freelance writer.