I like my dad's girlfriends daughter who is 13 and I am 16 and they keep telling me I can't feel like this for her but she seems to act like she likes me and I mostly just want to know if it is wrong. I have never felt this way for a girl before and I don't want anything sexual for now as I am a christian and want to wait till marriage but I also want to know if it is legal in Washington? Again is it wrong?