My sister and I are older and we split rent a house together with us and our kids. Her Boyfriend who she has been seeing for about 6 months will come and spend the weekend some times. One day he mistakenly walked in on me as I was getting out of the shower and I panicked but he was really non chalant about the whole thing and just apologized. After that moment I could tell he was staring at me more often and late one night he texted me saying “Sorry about the other day, I didn’t tell your sister about it” and I texted him saying “no worries it happens, I didn’t tell her either” then he texts me saying “by the way wow 😮‍💨” of course this is after I had a few glasses of wine and began flirting back with him and sending a couple pics back and forth to each other. The next weekend he came over my sister had fun out one night to get grocery’s after the kids had gone to bed. I was laying in the bed scrolling TikTok when he came in my room quietly, pulled my shorts and panties down and started eating me out, I told him we didn’t have enough time and we were going to get caught so he pulled his dick out and began fucking hard and fast like he was in a hurry, I had to keep both hands over my mouth cause I couldn’t stay quiet and didn’t want to wake the kids, I had never been fucked that hard, fast and rough before and without notice he pushed deep inside me and I could feel his load shooting inside me. Since then we have hooked up about once every other weekend if we get a moment to fuck. I’m hoping my sister never finds out and I’m secretly jealous she gets to be fucked like on the regular ugh