lol im trying to think of a good reason to not have sex
Venereal disease. You don't want to be out in the field and find one of your troop has gangrene, and then say 'where's the antibiotics?', and it come back 'Joe's used it all cos he got knobrot off some old tart.'
On behalf of MsPoopyButt who is too shy to ask: do lesbians play with fleshlights? If so, do they just do cunnilingus to it or do they also fingerbang it? Any other acts I'm failing to imagine right now?