Scootaloo was horny.
She was horny because she had a huge crush on her hero, Rainbow Dash.
"Um, I know I'm awesome and all," said Rainbow Dash, "but this feels just a little creepy, you know?"
Scootaloo leaned in closer for a kiss.
Rainbow was nervous. "I forget, how old are you? I mean, I've known you since you were just a little-- oof."
Pinkamena Diane Pie administered the chloroform to Rainbow's snout.
Rainbow's body slumped over. Scootaloo helped Pinkamena carry her to her basement workshop.
"Remember our deal," said Scootaloo. "You get your cupcakes, but I get to keep the wings."