Its not normaly what i do. But if i have one that i wont ever wear again and im in bed going at it i will use a sock to keep my bed clean.
I have once just to clean up easily, but usually I wouldnt. I prefer it to land on my stomach and chest!
I'd jerk-off with a rubber on before I'd do it in a sock. I don't see how you get any good feelings stroking your cock with a sock on it.
I've certainly seeded many a sock in my day; not what I do the most often, but there have been scores of times that I have.
I think my wife has real sexy feet so sometimes I use one of her cute little ankle socks that she has recently worn and jerk off with it. Big turn on.
sock is usually a clean up rag somewhere, whether it be during sex or masturbation , just jizz on the sock, its the dirtiest piece of clothing most the time , white so jizz wont show in the laundry basket, if it does show some people crusty yellow feet stains will camouflage the jizz ..