Starlight Dicksuckler

Starlight Glimmer and Big Macintosh fall into an awkward situation that ultimately leads to hardcore unprotected sex.

Twilight Sparkle and Spike unfortunately leave Starlight Glimmer behind when they are summoned by Princess Celestia. Due to a lesson, Starlight Glimmer has her magic blocked out for a few days. Luckily, Big Macintosh is there to help her out.

In many ways more than one.