When my father remarried, I had no connection to women at all, so I got a cute, busty little sister who was timid and would listen to anything if I asked her! I held back at first, but my sister is so defenseless I can't hold it in! I took advantage of my timid personality and asked her to do it, but she asked me to do it with me and said, "If I'd just rubbed it," so I did some dry humping! But of course I inserted it in no time!