Twilight is experiencing issues with her marefriend, Rainbow Dash. Nothing that would ruin their relationship, mind you, but Rainbow Dash is proving to be just as quick in bed as she is in the skies. Too quick, for Twilight's taste. But she has a solution: Science!
And that means experiments.
Lots and lots and lots of experiments...
Fetish List/warnings (liable to change as the story progresses)
Chapter 1: Cunnilingus, (VERY) mild non-con orgasm denial
Chapter 2: Bondage Cunnilingus, masturbation, very horny Twilight, orgasm denial