While on a romantic getaway in Las Pegasus, Starlight has an idea. An awful idea. She has a wonderful, awful idea: she and Trixie are going to have a threesome with a stranger.

What could possibly go wrong?

This story contains: accidental incest, lesbian horses doing lesbian things, role-play incest, impregnation, and incestuous incest.

As always, a big thank you to anon26182 for his excellent proofreading, and for kicking me in the ass when I was taking way too long to get back into writing. Cheers mate!