Definitely good advice to never act on any advances or feelings that may arise with a buddy's girlfriend. My roommate who is now a very close friend for over a decade has a gf who has a secret love for me. I always suspected something possiblly but she let it slip when me, my buddy, his GF, and His GF's sister who I was dating at the time, all dropped MDMA together in our hotel suite in Vegas. We were all about 7 lines of yay deep too and my girlfriend(buddy's gf's sister) suggested out loud that we all strip down to our underwear and the girls give the guys blow jobs. Well my buddy's sister immediately blurted out "yea! I've always wanted to see MyPusyTasteLikePepsi's dick. My sister told me ....about it.... That instantly killed my buddy's mood as he yelled "WTF!?" As he looked at her. I never felt so uncomfortable before. But she managed to get things going again and with in minutes the girls were going to town on us. I thougbt it was only appropriate that we hold hands and nod at each other in approval of this no homo, hand holding blow job party as we sat on our couch in our hotel. We moved the party out to the balcony (25th floor at the Cosmopolitan) and we partied even harder with out girls. Fun night but ever since then my buddy has always had an underlying suspicion and lack of trust over his gf when ever were alone. We went back to Vegas later that year and I had to go back to the room for something as we were all playing craps while rolling, and for some reason my buddy's gf siad she needed to get something too. When we got up the room you could smell the fucking sexual tension between us and our minds were both on the same page as we both pretend to be searching for something we needed, rummaging through magazines, clothes, bags, but our eyes layed lock on each others from across the room as we concisely maintained an continuous distance from each other and we swap sides of the room, tearing the room up. She finally decided to test the waters with a safe yet so too subtle comment. Trevor (her bf and my buddy) said that "you better not fuck MyPusyTasteLikePepsi in the room when u go up there" right when I left. I let out a nervous and subtle short laugh. And asked what she said back. She made some comment about her seeing me as a brother and she could never do that. I agreed with her but you could tell we were both contemplating if we have enough time to not raise suspicion from our extended lack of absence together. We're were so close to ripping each others clothes off, mind you were both rolling balls, so trying to use your brain to tell yourself this is bad idea was next to impossible. But for some reason, we both agreed with out speaking a word, just feeling each other's energy from across the room, that it was bad idea and she suggested we leave quickly now before we get a chance to reconsider because we both fucking knew that's what we wanted.