I find that for limiting the mess it works extremely well to use a very tight sock and stroke up and down verrry slowly. I usually fantasize about coworkers or my wife's friends, I find the sock sort of simulates being inside a woman so I can close my eyes, stroke slowly and the pressure from the sock grabs hold of me as I cum hard.
That would work with the mess but what if he does like it fast and rough....what then?That "sockie burn" would hurt like hell after-words...lol.
Viewed from the Moon, Earth hangs delicatley in the sky on an oasis of life in the black emptyness of space.Nothing could be more beautiful or more lonely.