"You shouldn't have poured me that much," my dad said the way he always did after I'd already brought him a nightcap.
"There's a funnel in the cupboard," I reminded him. "I could pour half of it back into the bottle."
"Ooh no!" he winced. "You can't mix poured whiskey with unpoured. I've told you that before."
You certainly have, I thought. On many, many occasions.
I sat back down and poured the top half of a bottle of beer into my glass. It made the sort of head that would get me sacked if I worked in the union bar, but I had plenty of time to let it settle.
"So did he get to try rimming you?" dad asked, swilling his whiskey and ice cubes around in the tumbler.
"Whether he liked it or not," I replied with a smirk.
At first he was reluctant. He kept trying to pull back and coughing and spluttering. I'm not saying I forced him, but I had to push my butt-crack into his face quite insistently and hold his head steady with one hand before he would lie still for long enough to see what it was really like.
When he did, though, he quickly found that he enjoyed it far more than he expected to. His muffled objections turned to surprised mutterings and eventually, as his nose started sniffing and his tongue started licking, grew more emphatically into eager grunts.
I gasped in appreciation: so this was what it felt like. This was what my dad had found so incredible that he'd taken his profile off the dating websites he used to try to meet women on.
Marcus didn't feel ready to penetrate me with his tongue, but he enjoyed getting his face stuck into my backside with very much the same enthusiasm as I had with his.
"And how did that feel?" my dad asked.
"How did it feel the first time someone did it to you?"
Dad peered up towards the top of the curtains above me, looking like he was studying the way they were hanging but really trying to remember the occasion that had happened. "I think that was when I was being fitted up for a pair of trousers," he muttered with a small, almost nostalgic, smile. "It was certainly very pleasant, I remember that much."
"Well, it felt pretty good to me, too. I think, though, that I enjoyed rimming more than I enjoyed being rimmed."
"Me too," dad said. "I've always taught you that it's better to give than receive."
Most of the pleasure for me, squatting over Marcus as he lay on my bed, was how unutterably naughty it was for us to be doing this together. It was a nice sensation - don't get me wrong - to have another guy's tongue lapping into my butt-crack and exploring up and down it, but it was more the act of what we were doing together that made me feel excited enough to want to jerk off.
Marcus was pumping his dick fast and hard like a piston. As his tongue swept up and down the full length of my cleft, tasting my different flavours from what Craig had called my taint right up to where the wiry hair in my crack petered out to become a softer fuzz, his hand was whacking his cock off as fast as he could. He liked to beat off really quickly - I knew that from when he'd stayed over before.
We'd ended up wanking off together one night after staggering back from town, not exactly rat-arsed but definitely a little worse for wear. As we'd pulled our clothes off, the fronts of our underwear had made it blatantly clear that we were both horny and, as we'd lain side-by-side in my bed with two obvious mounds lifting the duvet, one of us had suggested - him, I think - that we jerk off before sleeping.
I'd quickly agreed and we'd yanked down the fronts of our underwear and soon the quiet of the room had been replaced by the double drum beat of our fists against the duvet. Marcus' rhythm had quickly sped up from a quiet stroking to a loud hammering so fast and so strong that the cheap bedframe had started shaking and creaking.
"What the fuck are you doing, mate?" I'd asked him, pumping my bigger dick at more leisurely pace.
"I've always wanked off like this," he'd said, frantically slamming his hand up and down his shaft.
"But you can't enjoy it if you're just beating it up and down like you're shaking a fucking bottle of sauce!"
"I'm not doing it to enjoy it, Jake!" he'd laughed. "I'm doing it because Annabelle's had her tits in my face all night and now I'm hard as fuck and I need to spunk up before I can sleep - that's why I'm doing it!"
The bed had been making a noise like a lumberjack sawing logs. My flatmates would joke next morning that they'd heard us ending our night by boning each other's arses on my bed. It had seemed kind of funny at the time and it was even funnier in retrospect, since by the end of that term, the two of us were ending a lot of our nights by doing precisely that.
"You wanna take it easy, Marcus," I'd advised him as my own fist worked at myself at about half the speed of his. "A good wank is something to be appreciated... like a fine wine..."
Realising how much like my dad I sounded, I quickly added, "or some such shit!"
"Oh God yeah!" he called out, and I thought for a second that what I'd said had come as a welcome revelation. But then the smell of our cocks being jerked was joined by a more acrid odour and he said, unceremoniously, "Pass me something to clean this up with, mate."
After wiping himself down with one or other of our discarded socks, he'd turned over to face the wall and asked that I hurry up to finish off 'enjoying' myself.
With him lying underneath me, licking up and down my arse-crack and whacking himself off with that same, relentless rhythm, I felt compelled to reach over and steady his wrist and to tell him that I would show him a better way.
This was like Craig teaching me: now I was going to teach Marcus about how to pleasure himself.
He took his hand from his cock and I replaced with my own. I caressed it as sensually as I could, stroking my fingers up and down the shaft and enjoying how hard it felt throbbing against my skin.
I wet my thumb with his precum and worked it across his helmet-shaped head, making it slick and shiny and then adding a gob of my own spit to help lubricate his shaft. I worked my fingers right around his organ, making it as silky and slippery as I could, and he groaned to show his enjoyment as he kept flicking his tongue against my arsehole, egging me on as I took up a slow and deliberate rhythm on him.
I was actually surprised how much I liked it: there was a lot more to a dick than there was to a pussy and the sharp smell from its head was strangely appealing. I stroked it steadily up and down, kneading his balls with my other hand. The skin of his scrotum was soft and yielding and the paired mounds of his testicles inside it were larger than Craig's had been.
I'd always treated masturbation as a sort of art form, always keen to try out different approaches on myself and fascinated to find out how better to arouse my cock. Now I applied the same approach to Marcus' dick, stroking him in varying ways to find out what worked for him and trying to refine any techniques that he enjoyed. Once I'd figured out what he liked, I smiled as his organ swelled up to its full, impressive hardness and marvelled at the way the head of it started gently pulsating against the swirling patterns I was making with my thumb.
The best part was that it was making my own cock throb just as hard against my stomach. Who could ever have believed that wanking another lad's knob off could be so much fun?
But then, I suppose it was kind of obvious that it would be actually. After all, I'd always greatly enjoyed playing with myself - right from that very first time after my dad had explained to me how some weird-sounding activity he called "masturbating" was supposed to work.
He seemed to find it all very embarrassing, as he usually did when he talked our "private parts", and I hadn't really been able to work out what the hell he was on about the way he'd couched things in convoluted language and dressed things up so much.
I could figure out that there was some connection between a recent spate of wet pyjama bottoms I'd had to dump in the laundry basket each morning and whatever it was he was saying I had to do with my willy. Something about "manipulating" it each night before I slept - the way he was moving his fingers up and down in the air between us and talking about my foreskin made me snigger a whole lot more than I understood what he meant.
Finding it difficult to get to sleep that night as I was being hassled by a hard-on that just wouldn't give up, I heard my dad come up the stairs to bed and had an idea. Perhaps this "masturbating" thing he'd been talking about might be something he sometimes did to his own 'private parts' before sleeping. It was possible that if I snuck a look at him, I might find out exactly what he meant by that weird up and down hand motion that had so embarrassed him.
I crept along the corridor between our rooms after I'd heard him lie down on his bed so I could take a sly peek at what he was doing. I figured that the noises I sometimes I heard at night when my boner was stopping me from getting to sleep - a sort of gentle thumping sound which was usually followed by the same smell as the stuff that had soaked my pyjamas - must be him doing to his own dick whatever it was that he'd been saying I should do to mine.
That same noise was going on tonight. It had started up just after I'd heard him lie down on his bed. A low, gentle rhythm which was getting steadily faster.
I've often wondered if he knew I was spying on him as he masturbated that night. I've never felt able to ask him, but I've sometimes thought that maybe he felt more at ease to show me how to jerk myself off than he had trying to explain it to me in his half-cocked way.