My young boyfriend sometimes uses his swimming stuff for working out at home, when there are no more clean sports t-shirts. So it was one of those days, actually. I visited him that morning just to have a coffee, and I arrived a bit too soon. He didn't finish morning exercises yet. And I... didn't wank this morning. When I saw him sweaty in those clothes, I knew I would do anything to get his body under mine and stick my dick between those rears!