Most of my experience with other males is in an SM context with me as the submissive

I am a male bi-sexual. Most of my experience with other males is
in an SM context with me as the submissive. Let me provide a
little background before I get started. My earliest sexual
experience was when I was molested by a neighborhood teenaged boy
when I was four or five. When I was in the army I had my first
experience at an adult book store. I went to the bookstore with
a little bit of an alcohol buzz on. I went into the back area
where the video booths were and ended up sucking another guy’s
cock. I went back a few times after that. Once I let a guy fuck
my ass in one of the booths. I hitchhiked around the country
after getting out of the army and had one encounter with a man.
He picked me up hitching pretty late in the evening. We got a
motel room together and I ended up fucking him in the ass.
I got back to my hometown and continued to frequent adult
bookstores. There was one in particular that had several booths
with glory holes. I made it a habit of going to this one
bookstore and sought out the booths whenever I went. I preferred
to suck cock when I was there. I would enter the dark booth and
wait patiently for someone to enter the adjacent booth. I would
then rub my finger at the hole. Most times I was rewarded with a
nice hard cock to suck on. There is always graffiti on the walls
of these booths including phone numbers seeking encounters. I
got together with one guy by calling his number. We hooked up a
couple of times. We were both pretty much bottoms. The action
was limited to sucking each other’s cocks.
One day I went to the bookstore, entered a booth and saw the
message “Sex Slave Wanted” and a phone number. Seeing that
message sent a rush of sexual energy through my body. I
memorized the number and left the store. At the nearest phone
booth I dialed the number. I man’s deep voice answered. I told
him I got his number from the bookstore and wanted to meet him.
We made arrangements to meet. He lived in the next town about an
hour away. I drove over and called him when I got to town. He
met me and I followed him to his house. When we got to the house
he put in a video. Neither of us said much. There was a lot of
tension in the air. After watching two guys fucking for a while
I put my hands on his leg. He put his hand on my leg too. We
sat there awkwardly fondling each others legs for a few minutes.
Finally I mustered up the courage and dropped to my knees on the
floor in front of him. He pulled his pants down and got his cock
out. I sucked him into my mouth. That was about all that
happened during that session. I called him every few weeks after
that. I would go over and we would have pretty conventional gay
sex. I would suck his cock or he would fuck my ass. I was
obviously the bottom but we never got into the sex slavery that I
was hoping for.
After several months of this I confided in him that I fantasized
about being tied up and pissed on. He left the room for a few
seconds and came back with an extension cord. He tied my hands
behind my back then led me to the bathroom. He guided me to the
tub where I kneeled. I couldn’t believe it was actually going to
happen. After a few seconds his piss started arching out of his
cock toward my face. The feeling was incredible. I felt so
nasty and turned on. After that time our meeting became S&M
sessions. Before long we had a nice collection of ropes, cuffs,
a collar, gags, and a few dildos. We got progressively more
hardcore and I yearned to be treated rougher and rougher with
each encounter.
Sessions would usually start with me stripping at the door. I
would then go get the bag with the bondage gear. I would place a
collar around my neck. He would then tie my hands together
behind by back to over my head to the back of the collar. I
would then suck his cock while he pinched and twisted my nipples.
With time he became progressively rougher on my nipples. He dug
his nails into them even causing them to bleed. Finally he
started clamping my nipples with clothes pins. At first this was
unbearable. With time I grew accustomed to the clothes pins and
he started pulling and twisting the pins on my nipples. As my
capacity to endure the pain improved we pushed the envelope.
First it was alligator clips that I bought at Radio Shack. The
teeth bit into my nipples causing me great pain. He also clamped
the small black paper clips onto my nipples with a string
connecting the two. This caused intense pain. I am still unable
to endure these unless I am tied up and can’t remove them myself.
He started clamping my nipples and using the cord connecting
them to stretch my nipples. He pulled on the cords until the
clamps snapped off my nipples. This was incredibly painful and
an incredible turn on.
On one occasion I asked him to shave by cock and nuts. It was
incredible. Having him shave my cock was a perfect expression of
my submissiveness. That became a standard opening to our
sessions. I stripped down at the door then got led to the
bathroom where I was shaved and then pissed on. I was becoming a
total degenerate. I craved the humiliation and pain.
When he fucked my ass he started making me clean him with my
mouth when he was done. He started torturing my cock too. He
put dick and nut separators on me. Sometimes he bound my cock
severely with cord. He put clothes pins on my cock head and then
shook my cock until they snapped off. He pushed a golf tee into
my piss hole. The worse he treated me the more I craved it. He
took a couple of Polaroids of me sucking his cock. That opened
another door that would never close again. He eventually bought
a digital camera and now has several pictures of me in various
poses: tied up, with nipples clamped, with clothes pins on my
cock, spreading my ass for him, and sucking his cock.
I have since moved away. It is now several hours to his house
but I still travel to see him occasionally for session.