We're guys and we have our needs, and since there's no one there to satisfy them we have to go with masturbation. Don't blame us, blame the girls in the world.
Steven doesn't know what the fuck he's saying, guys with girlfriends masturbate too. It's not like girlfriends want to fuck you every minute, unless they're whores or animu waifus.
Oh and i found the secret technique to jerking off when i was 12-13 (not quite certain) but i bet my asshole i started doing it on a daily basis when i was 14.