After we agreed to our sex pact (she would get extra cock, while I remained 100% faithful to her, but I could fuck her anytime I wanted), we talked about who would contribute the first new cock. Her suggestion amazed me: an old boyfriend of sorts, her second lover, whom she had sex with only once. He had been her TA in a math class she had in college. One day, they had run into each other in the supermarket, and she ended going to his place to make dinner together. She also ended up spending the night him, but things didn’t go smoothly, as she had just met the fellow who was to become her new boyfriend, her third lover, and she wanted to pursue him, not the math TA. She was sure that the TA believed that she was disappointed in his performance (he came very quickly she told me) or that she might have disliked him, because of the poor sex and her worried attitude (the guilt she felt for being with him when she actually desired the other fellow). So, she wanted to make it up to him this way, letting him fuck her again, almost two years after the fact. A sexual do-over. Amazing.
We ended up tracking him down, which was not easy, as he had finished his master’s degree in math and had moved. Actually, I tracked him down; if kinky sex hadn't be the goal, I would have given up early on. The college refused to give me his address and phone number, in spite of my claiming to be his former roommate. I told the belligerent bureaucrat that if he ever returned, to tell him that I was sorry to have given his expensive scuba gear to Goodwill, but that I had to move and could not take it with me. She gave me his phone number.
What a strange phone call she had with him. He played the big brother and he implored, begged, and, finally, ordered her to return to college to finish her math degree, while she tried to keep it light and fun. I got bored after 10 minutes and I left to read a book. Fortunately, I returned just in time to hear her talking about sex with him. She had already apologized for the time before and was now telling him that my birthday was coming up and she wanted to make my ultimate fantasy come true: me watching her being fucked by another man. She didn’t say “fuck,” probably she said “making love,” but she meant fuck and he heard fuck. Convincing him that it was actually okay with me took some doing, but I ended up watching him fuck her twice in the hotel room we were staying at in his hometown (he was then living with his parents, while looking for a job).