girlfriend banged the bartender[cuckold] [first timer]

a couple of weeks ago my gf[22] and I[23] went to a bar that had arcade games to drink and have some fun. We must not have noticed him at first but one of the bartenders. 6’0, slicked back black hair, muscular build, tattoos, mid 20’s, was eyeballing my girlfriend the whole night. I first noticed when my gf was waiting by a machine while i was getting us drinks, and he continued to eyeball her the rest of the night. After about maybe 2 hours and a couple drinks I tell her that the bartender has been staring at her non stop, she laughs it off but then I say “maybe go flirt with him and try to get a free drink, maybe we can get something out of him staring all night”. She looked at me and was very hesitant but i kept insisting that she should, I told her to do what she has to and then she agreed. Watching her go up to him and be all smiley turned me on, maybe it was the alcohol or maybe i had discovered something in me that found it hot. They talked for a few minutes, he kissed her hand and she had whispered something in his ear and then she ended up getting a free drink. When she got back I asked her what she whispered to him but she refused to tell me, that also turned me on, the thought of what she could’ve said was turning me on beyond belief. About 30 minutes later we decide to start leaving and I was still hard from the thought of her and him so I told her that if she wanted to he could come over to our apartment after he was off for some fun. I hope it was the alcohol talking because she was more than happy with this idea, I sort of panicked just to make sure this would happened and I told her that I could hide in our closet and she could tell him that it would just he them 2, she was also more than happy with this. I wait in the car while she goes and asks him. She came back in about 5 minutes and I asked her how it went, she had told me hed be off in about an hour and that she got his number. We headed home and we showered getting ready for the bartender to arrive. He arrived about 40 minutes after we were done showering and I had to keep my end of the deal, I hid in the closet in our room and waited. I could hear them talking in the living room, they were complementing eachother and laughing. After a few minutes she walks him to the bedroom and she gets on the bed, he is wearing shorts and a hoodie and before he gets on the ned with her her takes his hoodie and his shirt off to reveal his abs. I didn’t know how to feel at this point. He laid right next to her and she immediately put her hands on his abs and started making out with him. Ill save a lot of the details because they were there for maybe 2 hours and I did cum twice while watching. This was a wild experience that I never thought I would ever live through