Is it normal to steal your girlfriend's sister's panties?
I am occasionally over at my girlfriend's house where she lives with her family. She has a younger sister who is unbelievably hot. Her sis is always flirting with me, bending over in front of me, touching me. She is sexy as hell! I love my girlfriend though and I'm just friendly with the sister. (I'm 27, gf is 24, sis is 19.) I can't help looking at her ass sometimes though, she walks around in tight fuzzy pajama pants a lot and she has an amazing ass. One day her sister left the house and I was there and my girlfriend asked me to get something from her room. I went upstairs and her sister's door was open. I saw her pajama pants on the floor and her green cotton panties still in them just like she had stood there, let them drop to the floor and stepped out of them when she changed clothes. Bikini size 4 panties. No one was around so I went in her room. I had never been in there because she normally keeps her door closed. She had just been wearing the pajamas and the underwear, they were still warm. I picked up her panties and smelled them, they smelled so amazing! I instantly was getting hard. I stuffed them in my pocket. I still remember how warm they were.
This was a few weeks ago. The sister has given me this crooked little smile when she sees me and she is being really nice to me now. (She is usually kind of a bitch to everyone except me for the most part.) I think she suspects I took them. I don't think she told anyone. I still have them, I haven't done anything with them, I just like to look at them and smell them from time to time.
Is this normal? I would never hurt my girlfriend by doing anything with her sister even if her sister did really like me, but I don't think it's wrong to fantasize.