KHAKIBUM (also KHAKIFLASH, sometimes KHAKISHORTSMAN or just plain KHAKI) - A khaki-tinted perspective by gay, India-born, Khakistani, daddy codger in 70s, peeping out from under button-down flap of back pocket on army surplus khaki drill shorts, held up by original boy scout belt, which still fits - though with extra hole punched!
Maybe the sucker is being made to suck against his will (which it looks like) or he has to identify whose cock it is he's sucking as well. Either way he should be grateful to be given the chance.
From the splatterings on his face looks like either he missed the first spurt or the cock wasn't well aimed. But he'll do what he can now and will hope for a more efficient meeting of mouth and cock next time round.