Depends on the intensity of the orgasm. I can be fairly silent, just gasping, if it isn't a body-shaking explosion. OTOH, when it is, I usually let out a least a few grunts or groans, maybe even a few utterances like "Oh God, Yes" or whatever. No funny stories, alas.
Wouldn't you rather have a nice cup of tea?
Yeah, I'm usually pretty quiet. I grew up without a ton of privacy (sharing rooms, always someone around), so I learned to be discreet.
Don't believe everything that you read.
I sometimes masturbate in bed with my woman next to me if I’m in the mood and she isn’t. I minimise rocking of the bed by just pulling my foreskin back and forth across my corona ridge with my thumb and forefinger, and stifling my grunt when I squirt my load. But what I find difficult is suppressing the involuntary thrust of my hips when I cum, but usually I manage without her knowing.
I can get loud during the big O. I do recall having sex with her in a tent with a neighbor with children less than 10 feet away. We were on a air mattress, which was super quiet. We came together. I started to moan and she pinched my ass. I channeled it into heavy breathing.