Being barely nineteen when all of your friends are in their early/mid twenties is a bit of a bitch for Rainbow Dash. She's used to being treated like the child of the group, and constantly boasts to cover up her embarrassment.

Only... she's found something she really can't get through without the help of a friend, and it's stopping her from pursuing relationships: she doesn't know the first thing about sex. Like, anything about how to make a stallion happy!

Twilight wants to help, but she's hardly a stallion. Luckily, her brother's visiting the castle, and what's the harm in a brother/sister teaching session?

A three part story! (Light RGRE elements.)