Twilight, Dash, Blitz and Dusk were having a sleepover but Twilight and Dusk had to get something so they left Dash and Blitz alone and you guys know the rest
MLP: FIM is owned by Hasbro
Drawing(mature warning): http://kikirdcz.deviantart.com/art/MLP-Sleepover-468282854
Cast:

Blitz and Dusk- Me

Dash and Twi- Eliza Vandewalle