I'm dating my girlfriend for years now. We enjoy each other and we like having sex, while also avoiding the risks of pregnancy as much as we can. We started off with condoms, but we didn't like the odds, so then she started taking birth control pills. The bad part was - her general everyday mood got way worse, and her sexual pleasure was pretty much dulled into non-existence. Not what I'd call an improvement.
I researched a little bit and found out that vasectomies are actually pretty accessible and affordable. Keeping in mind none of us wants kids in foreseeable future and that we're very sexually active, the thing seemed like a deal made exclusively out of positives. I got through the formalities and soon enough, I was snipped.
And after that? She no longer needed pills, being able to enjoy sex again, which is an important part of my enjoyment as well. There was no risk of insemination while also the rubber fun-ruiner wasn't required to separate our bodies from direct contact. Everything just got plain better.
But then, there's the twist. A hidden layer. I have a castration fetish. I'm turned on by me or someone else getting castrated, especially if it's for a woman's pleasure or fun. So me becoming permanently infertile to better pleasure my woman? A dream come true. And each time she goes out of her way to remind me, that my balls are no longer functional because she wanted it (in reality it was my decision, but saying that just makes the fantasy better), what usually happens next is an earth-shattering orgasm.
The moral: life gets better when you snip your balls.