Anal Curious Step-Sis

My Step-Sister Paisley has always been kind of conservative, by looking at her you wouldn't think so. She was planning to save her self for marriage but wanted to test her current boyfriend out, she thinks it's a good idea to enlist me for the taking of helping her. Paisley now wants me to have sex with her so she knows what it feels like and is not afraid with her boyfriend, she also thinks if it's anal sex she won't lose her virginity.