I looked at the clock. It was going on for three. At this rate, I was going to need half a jar of coffee to get me going in the morning.
I'd been enjoying having horny thoughts about the first time I'd hooked up with Marcus, and it had been nice to lie here snuggling into his back and rubbing my dick against his bum while I'd played through it in my head. I'd thought that sleep would gradually take me, but as it hadn't and all those thoughts had left me with a hard-on that wouldn't quit, I realised I was going to need to get rid of it before I was going to be able to doze off.
Since Marcus was too out of it by now for me to risk waking him, I decided I'd have to nip off for a quick wank.
I got out of bed quietly and headed off to the bathroom.
If only Bradley or Guy was staying over with my dad and there was a nice raunchy pair of briefs lying in there for me to have some fun with.
But no, when I switched the light on and closed the door, the only pair that I found there were a pair of my dad's Calvins. Pretty well-worn too, by the look of them. I suspected he'd left them there hoping Marcus would take a sly sniff of them. He could be such a sleaze-ball sometimes.
I pulled my own briefs down and sat on the loo. This would have to be an imagination-only wank. It had been a while since I'd had one of those. Normally I'd switch on some porn to help me out when I was jerking off alone, but this time I'd just have to think nice thoughts.
I took up a steady rhythm - Jesus this bathroom was cold - and thought about what had happened that same morning after Marcus had cum up my butt.
After he'd pulled out of me and wiped himself off - I've got to admit that the mess was a lot worse than you get with a girl - he'd surprised me by immediately suggesting that we change positions.
I'd asked, "Don't you want to... you know... calm down a bit first? Recover, maybe?"
"No," he replied. "I wanna know what it feels like. You enjoyed having me inside you, so I probably will too."
He grabbed the Vaseline and worked a gob of it into his arsehole, and then got on the bed on all fours like I had.
"Come on then, mate," he quipped impatiently. "Do me like I did you."
I smeared some of the Vaseline all over my cock and got on the bed behind him. It felt oddly exciting to be with another lad like this: him bent over with his arse sticking out and me kneeling behind him with my hard-on level with his butt-crack. I knew it was the gayest of all gay positions and yet I kind of liked how it felt for us to be together like this.
"This is going to be a squeeze," I warned him, pushing my huge cock head between his cheeks, right where his tightly clenched hole would be lurking. I was pleased I was running a full boner: getting my cock into another guy's butt would be almost impossible if I was even slightly floppy.
I found his puckered hole with the tip of my dick and pushed my bell-end firmly against it. Even after several attempts, it steadfastly refused to let me in.
"Relax your butt like you're taking a shit," I told him.
"Aw, you say the cutest things, mate," he chuckled.
He made a deliberate effort to relax his hole and I managed to work the an inch or so of my massive purple helmet into him.
"Is it going in?" he asked.
"A bit, yeah," I grunted, surprised at how much effort this was.
"How does it look?"
"Like my dick going into your arse. How do you think?"
He laughed and explained, "When mine was going into you, I thought it looked pretty cool. Having my cock slowly disappearing between another guy's arse-cheeks, and the way your butt-hole was sort of consuming it... I dunno... it looked kind of hot to me."
"It probably will when it's a bit further in," I conceded. "Now it just looks like one mis-timed fart would push it back out."
"I'll be careful, then," he chuckled and relaxed his hole further so I could ease a bit more of my bell-end into him. The widest part was yet to come - the base of my dick head where there's a thick ridge like at the bottom of a helmet. Getting that through his butt-hole was going to be a strain but once I'd worked it inside him, the rest of my cock would - I hoped - slide into him a bit easier.
"Actually, farting must be pretty common during bum sex," he observed. I couldn't believe how he was just chatting away while he was slowly receiving a dick up his arse. It was like we were just sitting have a coffee in Costa, talking bullshit together, rather than having our first butt-fuck together. He was just so bizarrely relaxed about it.
I wondered again if he'd done this before. For all he reckoned that the boys' school he went to "wasn't like that", he seemed too at ease with what we were doing for this to be his first time. Surely, in even the most virtuous of boys' schools, a few pillows would get bitten in the dorms after lights-out? In spite of his claims of absolute innocence, I wondered how many bite-marks Marcus' pillow had had on it.
"Maybe," I replied. "Girls get a bit funny about farting during sex, but I don't suppose guys are too bothered."
"It's gonna happen, mate," he said. "It's pretty inevitable."
I pushed forwards as he tried to relax further and the base of my cock head pushed through his stretched anal ring. It contracted behind it, squeezing around the top of my shaft. It looked, as Marcus had observed, quite appealing: munching on the girth of my dick as if it was slowly feeding on it.
"Oh... fuck me!" Marcus called out in pain.
"I'm trying to, mate - give me a minute!"
"Surely it's in by now!" he implored.
I laughed. "Not even close. The head of it's in but there's about eight inches of stalk left."
"Jesus," he winced. "I've never felt anything like this."
If he had spent his school nights having his butt poked in the dorm, the lads who had sneakily pleasured themselves must have had dicks considerably smaller and thinner than mine.
"Do you want me to take it out?" I asked.
"No," he replied. "Keep going. Once it's in, you kind of start getting used to it."
"Are you sure you haven't done this before?" I asked. I could well imagine him being the pass-around-pussy of his boarding house.