Old rolled up cot mattress

When I started I remmember a couple ways I’d do it.  I remember spending time in the attic using an old rolled up cot mattress.  It stand it up and put my dick in the hole in the middle bend over and put my hands on the floor and hump the hell out of it.  Another way I’d do it was in my room I’d kneel next to my bed and put my dick between the mattress and box spring and hump it.  I started getting plastic sandwich bags from the kitchen and filling them with Vaseline or baby oil or even cooking oil what ever I could get my hands on and I’d put the bag between the mattress and box spring or in the hole of the rolled up cot mattress I remeber loving that feeling and I’d do it so much. Loved not having to use my hand.