My situation is as such: My wife is not on birth control and has a boyfriend that she's been dating for about a year and a half now. They meet for sex about every two weeks for 2 or 3 days at time. She takes him bareback and lets him cum inside her as she's not worried about getting pregnant because he has had a vasectomy. Since she has been dating him, we agreed that she would only have sex with him. At the time, I didn't realize how hard it would be to not be able to have sex with her anymore. She sleeps nude or wears something really sexy (like black micro-shorts or lacy panties). Needless to say, I find it hard to sleep knowing I can't penetrate her and her boyfriend gets to fuck her and ejaculate inside her. When I tried to make advances towards her she says, "No...remember our agreement. My pussy is reserved for him." I had asked for a modification of our agreement to allow me to penetrate her. She bluntly refused. She said she enjoys sex with her boyfriend too much and that sex with me is quick and boring. And since I'm not fixed, she fears getting pregnant. She further stipulated that she MIGHT change her mind IF I got a vasectomy also. She is in her 40's and doesn't want to get pregnant again at this stage of her life. So, my question is this: Should I get the vasectomy and be sterile for life OR refuse it and simply be cucked for life? I would love to fuck her again, but at the same time, I LOVE being cuckolded. Please offer some advice. Thanks.