Curious About The Taste of Cum Pt 2

They had rewarded me large amounts of semen, that I could feel warming my ass and belly. How could any girl compare to having a rock hard penis invading your most intimate places?
Part 1
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When I woke up the next morning, Mark wasn’t there. I guessed he was being discrete, not knowing how I’d be in the cold light of day. It was the right thing to do for as the fog of sleep cleared from my brain and recalled everything that had happened the night before, I panicked.
I grabbed my clothes, got dressed and escaped as quickly as possible.
Once I got home I showered and tried to put everything that had happened out of my mind. I mean, jerking off to gay stories was one thing, this was something else entirely. But at the same time, I had just had the best night’s sex of my entire life. I was so confused.
Even though I had done a runner on Mark, I couldn’t bring myself to call him and he didn’t call me. Sunday stretched into Monday stretched into Tuesday into Wednesday but there was no contact.
I tried to go on as normal at work but every so often I would have a vivid flash of memory; the hardness of his penis as it slid over my tongue, the taste of his ass, the warmth of his semen as it flowed into mine. Each time my hand would creep towards my cock and I’d have to pull it away before I got in trouble.
By the time the following Saturday came around I still hadn’t heard from Mark or had the guts to call him but we were all due for another big night out. I nearly didn’t go but I realised I had to see him sooner or later. I made...