Replying to GF problems

ive been having some probelms with my gf lately but heres the story. so, im a pretty socially awkward kid, and this is basically the first girl ive ever dated and we are both highschool seniors. shes pretty quiet so we get along pretty well. Until today, i thought she was a pretty normal person. Anyways, what happened was her parents were out of town and she told me to come over. I had never had the sexuals with a girl so i was freaking out. so i get to her house and when i walk in her house, and shes fucking naked laying on her couch. >boner.jpg. being me i got really embarrassed and apologized and looked away, but then she says she wants me to bang her. so then we were making out and she suddenly stops and tells me she"wants to be a man" and then asks if she can use a strap on on me!! I was pretty wierded out at this point but she kept going and told me about the other wierd stuff shes into and how she has a leg fetish and wants to "play with my leg". She starts kissing my leg, licking my leg, pulling my leg, im pulling your leg.