Diamond Tiara was having a good morning. Then her mother dropped dead. Then things got weird.

A collaboration with SockPuppet. Inspiration in the author's note at the end.
Story notes

Twilight is having a sleepover with her best friend (and crush) Sunset Shimmer, and they have the house all to themselves. Unbeknownst to Twilight, Sunset has some plans for the evening.

Contains: Pet play, no actual sex, consensual mostly-innocent fun.

Cover vectors:
Sci-Twi by Uponia
Sunset Shimmer by CaliAxian