2nd person you and humanised Twilight. Feelings are expressed when you help Twilight develop a new spell. Awesome zero-gravity sex ensues.

The Serenity crew crash-lands in Equestria. Reavers follow. Rarity sees Jayne's hat. Fashion ensues

2nd person, humanized, sex-in-zero-gravity story with little to no plot. You, Rainbow Dash, and two of Twilight’s gravity negating potions. Fun ensues.

Applejack and Big Mac get some characterisation. Aw yeah. First fic ever written by me, ever.