Last summer me (m27) and my gf(f26) took a trip to the beach. The day before I took her out shopping and she got a few thong bikinis and wore them while on our trip. One day we were at the beach pretty early to set up our tent and chairs. After we were all set we took a walk down the beach. I was catching guys staring at her ass as we walked by. The thrill had me so hot. Around lunch time we went up to one of the beach bars close to us. Few minutes went by and a guy came up to us and sat next to my gf. We started talking with him and he offered to buy us some drinks. We stayed and talked and he was starting to flirt with my gf a bit. She was playing into it and flirting back. He asked if we wanted to hang with him for the day and drink and also had some other party favors back at his room. We left the bar to go indulge ourselves with those party favors. We wet up at table and played some beer pong. After a few games the guy asked if we should make it more interesting. He suggested if he wins my gf flashes her tits. We both agreed and played. He ended up winning and we both turned to my gf. She pulled her tits from her bikini top and the guy went wild lol. We played another game with my gfs tits out. He must’ve been distracted and we won the next game. He asked since he lost should he flash us now. My gf immediately said yes and he pulled his cock out. It was huge. My gfs jaw dropped and she went over to him. She couldn’t take her eyes off his cock. She told me to come stand next to him. She pulled out my cock and started sucking us both right there. After she sucked him for a while she looked to me and said “babe he’s so big” and I couldn’t do anything but agree. Me and him layed on the bed and she kept sucking us and stroking our cocks. Few minutes went by and she hasn’t given me head in a while. I went down and started eating her pussy and ass. She said she was so ready to fuck but wanted him to go first. He got behind her and started fucking her pretty hard. She was moaning louder than she does with me too. She was sucking my cock while we split roasted her. Suddenly she stopped and continued moaning over his cock. I tried to get her to keep sucking me but she was too distracted. Then I asked if I could get in and get a turn to fuck. My gf cut me off and told me to wait. I waited and waited while they switched positions again and again. Never got my turn. He finally came all over her face and tits. When we got cleaned up me and my gf went back to our room. That’s when she told me I could have my turn. I started fucking her and she was barely moaning at all. I asked if it felt good and she said “yeah but it’s not as good as his” once I heard that I immediately shot my load. She knew I got excited over hearing how good he was. She was licking up my cum but still talking about how the other guy felt. It was hot as fuck to watch her but which I had a turn too.