Straight Coworker sucks my cock

Back at my old job I worked with many different people. One in particular was a guy who was pretty straight forward and open with just about anything. Nothing was off limits. We'd make jokes about everything. He of course had a gf who also worked with us, and I myself had a gf. One time his gf wasn't around and we ended up talking about her. He talked about how she sucked his cock. How they experimented and how he had to show her how to suck his cock. Cupping his mouth jokingly. I jokingly replied maybe he should show me too as we laughed it off. That was the end of it as we got back to work. Days later, it got late and everyone was leaving the workplace. We stood outside waiting for everyone to leave the parking lot. Once every one was gone, I went ahead and headed towards my car like usual. Saying good bye before being stopped. He called out to me and came over asking me if I was serious. "What do you mean?" I asked. "Do you want me to suck your cock? I'll do it." he said. I stood there not believing him. "Stop playing around, i'll see you tomorrow." I said brushing him off. "No I'm serious, I'll suck your cock right now. It'll only take a few minutes." He said. I stood there, not knowing how to respond. After a moment of silence I asked him again, just to make sure. "You're serious?" he repeated himself, "Yeah im fucking serious. Do you want me to or not?" he said. That was all it took as we ended up in the back seat of my car. I was sitting there with my pants down to my ankles as he had his head in my crotch. His tongue licking the tip of my hard cock all over, and then up and down. "Fuck..... I can't believe you're sucking my cock...." I said smiling. "Mmhm…. you're so hard..." he said continuing to lick my cock before slapping it all over his lips and then shoving it in his mouth and sucking it hard. All I could do was sit back and grab onto my seat as I watched him use my cock. He spat me out, licked my cock all over and then got his mouth back on my cock. I looked at him as I licked my lips, he was sucking my cock so good I couldn't wrap my mind around it. He teased my rubbing the head of my cock all over his tongue as he flicked his tongue all over it. I bursted out moaning, "Fuck!" I said... almost coming as pre cum spurted out the tip of my cock. It landed on his tongue and he continued to lick my cock before stopping. He watched my cum drip slowly down the side of my cock before he quickly licked up and then continued to suck me. It felt like he was sucking me even harder then before and I was shaking all over. Moaning so loud as I reached up and placed my hand on his head. "Fuck my mouth..." he said with my cock still in his mouth, I started thrusting. I could feel him open his mouth wider. His tongue stuck out and brushing against the shaft of my cock as I fucked his mouth. his hot warm saliving dripping all over my cock and balls. I stopped and pulled out as he grabbed onto my cock. Both of us smiling and laughing. "Fuck... fuck that's good... you're going to make me cum... " He started licking my cock again and was about to fuck me but then his phone went off. He grabbed my cock in his hand and continued to stroke me as he picked up his phone and answered.. "Fuck.... hello?" he went on. I sat there trying to be quiet watching him on his phone and stroking my cock fast. "Yeah... okay.... okay.." He went on talking, then turning to look at me while still on the phone as he licked my cock and sucked the tip. "Okay... see you tomorrow." He said as he hung up. He put the phone down saying it was his gf as he then focused back on me. "It's time to make your cock cum...." He said... stroking me nice and slow, all the way down to my balls, he shoved his face in my balls licking and sucking my balls with his tongue and lips, pulling at them. Moaning as I watched him slide up and got his lips wrapped around my cock again and he was now throating me deep. I thrusted and I watched him as he took me. "Fuck... fuck... that's it..." I said... "Fuck that feels so good.. make me cum..." I said struggling. He grabbed my cock with both hands and started stroking me with both hands, his eyes glued to my cock. I thrusted my hips upwards and I started to shoot my cum all over his hands. He got his mouth around my cock again and sucked me as I begged him to stop.. "Fuck.... fuck... wait!!" I begged as he drained me.. I could hear him moaning and swallowing my cum as he kept me in his mouth. I laid back, shaking and shivering as I remained still. Feeling his warm mouth still sucking my cock trying to get everything I had. He finally let go of my cock and slipped it out of his mouth. I looked down and saw him waiting as he then got up and out the car. I laid there a bit and the pulled up my pants as I went out to him. We chatted for a bit just talking about what had happened. I told him he was good. He was satisfied as he told me he'd see me tomorrow. We would go on and act like nothing happened but every now and then we'd wait a little longer when we got off, just to sneak into the car so we could do it all over again.