Help, Stepsis, I'm stuck!

Scootaloo finally learns to fly, and she gets to celebrate with her teacher, Rainbow Dash. Except Rainbow Dash has something more lewd planned than just pizza...

She finally did it!

Under Rainbow Dash's tutelage, Scootaloo finally learned how to fly. They decide to celebrate at Rainbow Dash's place, but she has something more lewd planned than just pizza. It'll probably leave Scootaloo a bit sore, a lot confused, and 120% satisfied.