As a cuck, our relationship progressed, regarding the things she would do with her lovers, and the things she would make me do. She found a lover she felt safe with, and after us discussing the chances of her getting pregnant, and that I would just have to accept it, if I wanted her to go bareback and have him cum in her. With that settled, she went and spent the weekend with her lover and I greeted her at the door when she arrived home. She just laughed at me and told me that she had a present for me. We rushed up to the bedroom and she laid down and spread her legs, and told me to lick her clean. I did and while I did, I could taste his cum. She began asking if I could taste him, did I like his taste, did I want more, etc... but she would never actually allow me to suck him, which I really wanted to do. I'll never forget her asking about me tasting his cum. So hot and makes me hard to this day.