lasso onto your neck

You have on:
-Shirt
-Pants
-Shoes
-Underwear
-a lasso over your neck

Suddenly she throws a lasso over your Neck... She got you!
You know there is no more reason to run... She slowly pulls you closer and closer so you walk to her. Finally, you are standing right beside she and her horse, her riding boot is almost touching your face.

"Let me see your face" she says from over you. "I am glad I have catched you. Those stupid girls don't want me to join their teams, so I am now teaching them who is smarter" she winks.

"So as far as I know you owe me a sexual favour, right?" she asks.

"Of your choice" you tell her...