I was both exhilarated and embarrassed to be the object of his sexual desire. He put on a condom and had me lie on my back. He pushed my legs way back...and put his cock head against my asshole, it felt like his cock had was 1000 degrees F. He told me to push out like I was shitting as he pushed his cock forward, his body weight behind the blunt end of his cock, He concentrated on driving that big purple head. I had my hands on his ass muscles, I could feel him curling his lower spin, more weight. I was about in the upper middle of the group for physical training, as I was younger than most. I was just another participant and never interfered with Colonel Mac. The facilities and meals in the dining hall were first rate, much better than regular Army chow and the facilities were upgrades over Army training facilities. The Naval facilities seemed better than the Army's.Most of the older former Special Ops men gained rapidly on me in physical training. I enjoyed the martial arts meditation. To make things worse this was apparently his 3rd wedding and for some reason I had to go, I tried everything in my power to get out of it I even asked my 20 year old brother if I could go and stay with him but he turned round and said he was being dragged as well. The Friday morning came and I went down stairs to see my big b*o sat at the breakfast bar drinking coffee and talking to my parents, we had grown up close together and I saw him as my closet friend. I could talk about anything to. After a few dummy runs I succeeded in exhibiting myself to him, sitting with one leg raised and open, exposing myself indecently as he wanked, everything was happening very quickly now he was aided by visual stimulation.Handing him my panties sent a shock through my being, it was such a turn-on walking home bare assed and knowing I let a stranger look at me as he wanked off.I was rewarded by his generosity and his demands were getting closer to the ultimate climax, my going into the bushes and.