"I've followed your blog for a while now. I'll try to keep this short. My husband stopped wearing any underwear and started sleeping naked after the doctor suggested it would help me get pregnant. Ever since he falls asleep with a hand cupping his balls. I know he enjoys ball play when he masturbates because he lies in bed next to me to do it and he's done a lot of that since we achieved our goal. My question really is why does he hold onto his balls at night, even after he cums? Do all guys do this?"
I guess congratulations are in order for the successful pregnancy. That's my assumption, anyway, with your saying you achieved your goal. The things guys can be put through at fertility clinics can...well, never mind that. You want to know why he cups his balls at night.
Two possibilities: One, after so many years of having them safely nestled in underwear, he feels a bit vulnerable and doing this offers a sense of safety.
Or, two, he just enjoys it.
It's not all the time, but I do the same thing. Crawl into bed and cradle the balls in one hand - not to play or masturbate. It just feels nice - warm and comfortable.
You didn't say whether it bothers you or not. If it's a big deal for you, I'd venture to suggest that you ask him. In the meantime, let's poll the readers here.
Guys, do you cup your balls at night?
If so, why?