I miss being watched with my bf

When I was in my teens ( all 18 +) , I had recently started seeing my current boyfriend, him and I used to be constantly horny for each other but wouldn’t always get the space for doing things since his folks were strict, but then we found a loophole: his best friend. His friend would come over, we would all spend time and then lock the room, where he would guard the door, just incase and we would go to the bathroom to fuck. I was always a little loud because of the lack of foreplay ( quickies can be difficult ). But I started noticing something, the friend would complain a lot. A lot, out of “frustration”. This man would, talk on and on about how I moaned, how he’s doing this out of friendship etc. go in depths of details and describe our entire ordeal word to word. Then we all went for a trip, where I was just not getting satisfied no matter what, and I was cuddled up in bed while my boyfriend was fingers deep in me, I heard his footsteps, he was in the room, we tried to talk normally and we did, I hoped he didn’t notice anything. But later on he implied to my boyfriend that he knew, but he stayed in there regardless, relaxing on the sofa watching us, talking to us. Sometimes he would be in the car with my boyfriend and I, and my boyfriend would try to sneak a lil squeeze of my tits, and kiss my neck and jaw. He would just simply nod and say do your thing guys but be quick. I would jump and let my boyfriend finger me and suck on my tits. It was so hot, knowing his friend was there, but what was hotter was, his friend started to steal glances at us. Lips parted, eyes locked, at us. Not just me, but the act of us being so engrossed in lust for each other. It got so normalised, I started blowing my boyfriend in the same room when his friend was around, and I could see him get excited while looking at us. There was something so raw and powerful and sexy in being looked at by someone who’s so intimately connected with my boyfriend. Unfortunately the friend moved to another country. But I miss it so much. The only reason I was okay with him was because we all trusted each other and were genuinely great friends.