We had been away for the weekend visiting some friends. We had gone out for a lovely meal and a few drinks. One of my friends thst I had known at university but not really seen much since was there. We had a great time catching up and he ended up spending most of the night chatting with me and my gf. We were joking a lot, drinking a lot and then dancing a lot. When we got back to the air bnb everyone headed to bed, but we fancied another few sei is so we sat up and carried on chatting. I could see that my gf was attracted to to him and he was definitely attracted to her. I kept catching him looking at her cleavage and checking her out. After a few more drinks, I gave the signal to my gf that I was open to her having some fun. She jumped at the opportunity and began to flirt. It was so hot watching her get close to him. You could see he was getting incredibly turned on. Eventually she whispered into his ear, he looked over to me and I just nodded. He then stood up and undid he pants and slid them down. His hard cock literally sprang out and was already throbbing. My gf started to suck his cock, she has taken her top off and he was staring at her tits while she was working his cock. She sucked him off for about 10 minutes and then he came all over her face. She loved it and was using her hands to clean it off her face and taste it. We then headed into our room and well, let’s say the fun carried on ;)