So i was at my girlfriends house (shes 16 im 17) and we wanted to play a board game so we everyone in her family if they wanted to play except her sister. My girlfired had to go to the bathroom so she sent me to go ask her sister so i went up to the door and knocked twice and after about a minute. Her sister is 21 and still a virgin and shes so sexually frustrated that her sister is concerned shell end up doing something stupid that will get her in trouble. Shes really introverted and socially awkward so she is unable to start a conversation with people and no guy ever approaches her on his own. Anyways im pretty sure that show was staged but the episode was about a couple who supposedly had an outstanding sex life. In the episode the wife had her sister who lives pretty far come visit them for a few days who was feeling very down because she broke up with her boyfriend months ago and hasnt gotten any sex since then. Ok well my boyfriend is in jail because he robbed some guy, my sister and mom told the cops that he raped her but there is no proof or something. Every time me and my girlfriend visit her parents house, her little sister always comes and sits like right up next to me and always seems to rub her boobs on me. sever all contact with your bil, try to stop deifying him and focus instead on his character flaws. Continue your counselling but dont feel the need to confess to your sister or family. My sister and i showered together from grade school to college (about 16 years). In the shower and in our beds, we hugged, kissed, and played with each other. The biggest shock for me was her first period in the shower, and her biggest shock was my first ejaculation in her hand. Dont do it because that is still cheating even if your girlfriend allows you to do it ( meaning both women will be attracted to you and that can lead to drama) plus even if the younger sister experience anal sex with you she is not a virgin no more because she experience physical contact in a explicit sexual way (meaning she experience a real penis in a erotic way and its highly & likely.). My parents were not at home and only my little sister and her friends were playing. So after some time in the kitchen we went to my bedroom and started to have sex. She removed my bottom half dress then start playing with my dink when it became very hard , she removed her bottom half.