It happened during spring break in Panama City Beach last year. We were on day 2 of staying in a hotel on the beach. My wife has met 2 single girls about our age and we had been hanging out with them by the pool most of the evening. It was late at night, and we were all pretty drunk partying with probably over 50 other people all around the pool. I had left my wife by the pool with the girls and went up to our room to use the bathroom and get new beers for us. I wasn't in a hurry and was probably gone for about 20 minutes. As I'm walking back out to the pool area, I see my wife in the hot tub with the two girls we had been hanging with, and about 4-5 guys. The girls both had their tits out flashing and the guys had their hands all over them. I saw one guy turn to my wife and say something to her, she puts her hands over her bikini top and laughs as the guy reaches behind her and unties it. When he does he pulls her hands away exposing her breasts. I had stopped on the opposite side of the pool area from them and was watching this all happen through the group of people partying. I was so turned on watching my wife tits being exposed, and wanted to see what else happened. The guy immediately pulled her onto his lap and went to sucking her tits, then moved up and started making out with her. I watched for several minutes, idk how long really, before she stood up and I realized her bikini bottoms were now untied on one side and his dick was out. The guy next to them grabbed her hand and pulled her over to him and put her on his lap. He too immediately went to making out with her and I could see her rocking up and down. I just kept watching until she finally got up and crawled out of the hot tub. As I walked over she was trying to retie her bikini and tried to play it off like it had just came untied accidentally, but I could see the cum running down her legs. I helped her back up to the room where I fucked her brains out.