The first time I did something truly slutty (F/M)

back when I was just starting my career as a personal trainer. I did one of the slutties things I’ve ever done up to this point. Not my first sexual experience I’ve done things with past partners. During my first 2 official days working at the gym, I was paired up with an experienced personal trainer. I was told to shadow him to get an idea of what would be expected of me. he was cute, nothing too crazy. We got along really well the first day, he was super nice and helpful. we didn’t do very much that day, it was mostly just him showing me where everything was at, and how the appointment system worked.

On the second day, he had a client. A female client. it was their first-time formally meeting, as this was her first session. She was very attractive and looked to be in her mid-20s. About 15 minutes into our session a thought accrued to me.
“Do male personal trainers ever get hard working with an attractive client?”
I have yet to meet a man that can control it that well. I know that’s not what I should be focusing on, but I was genuinely intrigued. Throughout the session, I kept looking down at his crotch trying to catch a glimpse of moment. By the end of the session, I was annoyed because I just couldn’t tell. Eventually, our shift ended. I asked him if he could walk me to my car. he didn’t hesitate and just said “lead the way”.
My car was about a five-minute walk from the gym’s front door. My curiosity got the best of me, and I decided to ask him.
“Can I ask you a personal question?”
“Sure…?”
“Do you ever get hard while working with a client?”
I asked, in the same manner, a child would ask a parent. “where do kids come from?”
to which he responded with the same look the parent would give that child.
“heh.. that’s .. umm… why?”
“Our first client was very attractive, I was just surprised you didn’t.”
“what.. were you staring at my crotch the whole time?”
“Psf.. No .. maybe.. I’m a very curious person OK!”

feeling embarrassed I looked away. luckily we had reached my car. I quickly unlocked the doors, and put my stuff inside. during those couple seconds of silence, I shook the embarrassment away. I opened the driver’s side door to get in. he was a couple of feet behind me. realizing I should apologize for asking something so inappropriate I turned around to face him.

“Look.. I didn’t mean to offend or anything..”
“Yes.. I’ve just learned how to hide it”
“How..?”

He grabbed my left hand slowly placing it on his thigh. I was curious about his response so I just went with it. looking down at where he placed it I waited for his response. he didn’t say anything. it was quiet for about two seconds. I started to feel him getting hard. it took me about two seconds to actually realize what I was feeling. I looked up at him. he was already leaning in for a kiss.
between waiting for a response, and the feeling of his cock getting hard I didn’t really have a chance to move away. I closed my eyes and kissed him back. it wasn’t a long kiss. I opened my eyes and met his. he put his right hand behind my neck. pulled me in for another kiss. all of a sudden I had forgotten what we were even talking about. All I knew is that his cock was growing in my hand, and I could feel myself getting wet. I no longer had a nagging question I needed answers to. My mind was finally quiet.
He guided my hand down his shorts, and I just followed. I started stroking his now fully erected cock. wrapping my hands properly around it. We somehow managed to open the back seat door. which he was leaning against.
He sat down on the edge of the back seat. Pulling my head down. I knew what he wanted. I pulled his shorts down enough to fully expose his cock. I started giving him a blowjob, slow at first. He started thrusting his hips as my mouth would start going down his shaft. Pushing his cock deeper every time. I gagged once, which made him slow down a bit. I gagged again, but this time he pushed his cock even deeper by holding my head down at the same time. this time forcing me to choke, leaving his cock full of my spit. My eyes were watery. I swallowed trying to recover from the choking. he grabbed my head and repeated the process.
I wasn’t prepared for him to cum so far down my throat I had to spit it out making a mess on the back seat floor. A couple of seconds later we heard a car pulling up to the parking lot. I got up quickly, wiping away my tears.
Unsure of what to say at this point, I just told him I had to go home.

The next few days were pretty interesting, to say the least.

Source: reddit.com/r/eroticliterature/comments/u16fo9/the_first_time_i_did_something_truly_slutty_fm