My long time live in girlfriend wanted to try a mfm t********. It was not a problem for me, I want her to have what she wants. We talked up front and she identified her minimum goals, d***************** and spit roasting. I told her she could have whatever she wanted from it. She picked the guy. It was enjoyable all around. So we began to have him over every couple of weeks. Nothing negative no jealousy. But one night while i am in her mouth and he was f****** her from behind, she was getting exhausted and having a hard time c****** again. She asked me to please lick her c*** while he kept f******. I did not hesitate slid right under her and licked away. That did the trick for her and she started moving wildly and basically they were both feeling my tongue. He unloaded in her and collapsed and I was enjoying the way she was going crazy still bucking and c****** and long story short obviously I got a face and mouthful of them both. When she slid off she was out of her head and looked down at my face dripping both of them and dove into kissing me violently as she finished me off by hand. The next day we got to bed and she tells me how hot it was for her to be licked and fucked and to taste herself and him on my lips and in my mouth. It was a huge thing and we fucked night after night it was all she could talk about. So I readily volunteered that she could have that whenever she wanted. I sort of figured I knew what she was thinking and after a few weeks the night ended with him pulling out and slipping into my mouth to finish off. No surprise that a few weeks after that she asked me to s*** his c*** deliberately. No surprise that she eventually asked me if i would let him f*** me in the a**. I gave her everything she asked for and she is quite happy and it gets me so much incredible s** with her that I look forward to his visits because they have evolved into me servicing him primarily. She is always thanking me for loving her enough to s*** c*** and be fucked for her. And the guy is very good at not making me feel emasculated or used it is not a sub husband/bull thing at all. And tbh I have learned it is enjoyable to do this with him. Respect and boundaries are there all around with one exception. He called me once to ask to meet for a drink and I figured that it was to drop the news that this had gone somewhere he was no longer interested in being. But his purpose was to tell me off the record that he enjoyed his visits very much because no offense to my wife but I was more responsive and a better f*** than she is.