In part in retribution, in part as punishment for an affair I was caught in, KK demanded that I get a vasectomy - as a condition for considering reconciliation, KK was absolute in that, so that I could not father any children with another woman.
At the time, she was still fertile. About two years later, KK was involved in an affair, unknown to me at the time. During the time KK carried on that affair, she elected to undergo a procedure to accomplish two things; allow her to have unprotected sex with her affair partner, without pregnancy risk, and her excuse to me, medical issues including heavy, painful periods. She underwent Depo Provera injections as a pre-treatment, followed by uterine ablation, rendering her sterile.
She’s now post-menopausal, so doubly free of pregnancy risk.
Sperm competition is an interesting dynamic. In addition to the children I fathered with KK, I’ve fathered three children with two different affair partners. In one instance, one of the women was married to two different men - our affair spanned both marriages, and two pregnancies. In all three cases, the women’s husbands were clueless, deceived into believing the children were theirs.
One of our children (mine and KK’s) is likely the result of the sperm competition dynamic - KK was carrying on an affair, which I had suspicions about, but no concrete evidence or proof. Every time I suspected that KK’d had sex with the probable affair partner, I made sure to fuck her, and cum inside her despite the fact that she was not using birth control. Eventually, she ended up pregnant. She kept fucking her affair partner, once morning sickness had passed. I was never able to catch her in the act - but I did demand a paternity test, and we had conclusive evidence the ...... was mine.
Before we were doing the hot wife thing, I had no interest in impregnation play or pregnancy risk play with KK and another man, although I did try and convince her numerous times to engage in sex with other men, while she was pregnant (because there was no pregnancy risk) - she absolutely refused, at least to do it openly.
During her first pregnancy, I was traveling extensively. KK was emotional, lonely, and horny. She had a short-lived affair while she was pregnant, with the husband of a friend, and another man - I’ve seen the Polaroid photos as proof. It was something I found out years after it happened.