Cock Slave Pt 2

I got on my knees and opened my mouth and looked up at him. He slid his cock down my throat, put one hand on the back of my head and one under my chin and rabbit-fucked my throat aggressively.
Part 1
*****
Jim was in the Bachelor of Fine Arts program. He was a very talented artist. I have one of his paintings and two of his etchings. I was in the Visual Communications program. The BFA painting studios were on the 3rd floor of the Arts Building, across the hall from the graphic design classroom and photo studio. In between were the men’s and women’s bathrooms.
I knew Jim, seen him around the campus and other places as we traveled in the same social group. I had no idea he would introduce me to a whole other world on campus…
He wore t-shirts and baggy jeans, and sort of slunk around with his head down. He was not particularly good looking but somehow appealing. It was very clear from the big bulge in his jeans that he had a huge cock. I noticed this one day our sophomore year when I was going up the stairs at studio building while he was coming down.
One night at the beginning of the second semester of our sophomore year, I was working alone late in the photo studio on the 3rd floor and he was working alone late in his studio across the hall. On the way to the bathroom to take a piss, I walked past the door of the painting studio.
When I came out of the stall, he was standing there with his pants and underwear down around his ankles, a big smile on his face and looking straight in my eyes, stroking his thick, hard ten inch uncut cock.
He said, “I’ve wanted to...