Anyhow so this idyllic moonlit Sunday evening I decided to go up there and count stars while I smoked some pot to see if that would help bring some sl...ep. The layout of the place is such that a waist high wall encircles some additional water storage tanks hence it is possible not to notice anyone else who might be seated on another side and especially when its dark. So this evening being my first time ever to visit the roof at night and with no reason to think to check if there might have been. You know, I love these big fucking knockers of mine but sometimes it would be nice to be able to spend most of my time not wearing a bra without having to worry about gravity and age dropping them to my navel.Along with the top and bra I wore a white skirt that barely made it to half thigh and fit so tightly it was clear I wasn't wearing panties and if the guys didn't already know that they were going to gangbang me then the way I was dressed certainly would. The only question I had was just. I will - oh wait. Sydney, I forgot the zip tie. Can you go get it?" I have one here," Sydney answered, pulling out the zip tie from her pocket. She took the honor of putting it around Jim's wrists, behind his back.Samantha started her sentence again, "I will be back after I change and get dressed. Then you need to take a shower." She walked up with Sydney, leaving Jim all alone. There he waited for her return, in full anxiety. Half an hour later Jim had to pee. He couldn't move much and his. I wasn't going to be penetrated, but there was no doubt in my mind.... he was fucking my ass. And I was enjoying it. I was enjoying being under the control of this person. Feeling him humping his cock between the cheeks of my ass. Bending over more for him. I began telling him how good it felt. How I liked feeling his cock between my cheeks. "Yeah, man, fuck me. Fuck my ass"He liked it. Bumped my rear end harder. Faster.Rubbing himself against me. Using my ass to get off. Foreskin back and.