Background here is my wife was cucking me with my cousin. I was a smaller scrawny office type working way too many hours. My cousin, who lived close to us, was in construction and was the same height but muscular to the point he almost looked like a body builder. My wife, with my support and help, had just started to cuck me with him but had not yet shared any details other than that she had slept with him a couple of times. She had told me that his cock was shorter than mine, but she said he was much thicker and he would make her cum usually as soon as he put it in. She said she would cum before he was halfway in and then ride him until she came again. I was a little jealous of that because with me she would cum once, with me inside her but with her also having to furiously rub her clit while we fucked so she could cum. But her cucking me was for her pleasure not mine so I accepted that he had a different cock, could fuck her differently and I did not get all sucky about it.
Around this same time we were having regular parties and get togethers at our house with friends and people from work. We used to do themes like games night, trivia night, etc. One night was gag gifts. The husband of one of the girls from my wife's office worked at a place that made health care products and condoms was one of the items. As a joke he brought out a roll of XL condoms to show everyone. My wife damn near jumped out of her chair and said "let me see those" and took the roll from him. There were sixteen condoms on the roll, all XL sized. My wife made some comments about putting them away for later, made some jokes and she did disappear and put the condoms away. In the drawer of her night table. I know that because when we were going to bed I asked where they went and she showed me.