After leaving the tea to brew, I went back through to the studio to find Adam and Stephen having what looked like very intense sex together kneeling on the couch. They were both upright and facing forwards. Stephen had one arm around Adam's prominent chest, fondling a nipple, while the other was wrapped around the bigger man's cock, gently sliding his foreskin back and forth across the great plum head. They were kissing passionately and Stephen's hips were gently slapping against Adam's big squat buttocks. They looked magnificent together and I stood for a minute admiring the sheer beauty of their love.
Then I went over to sit down in front of them, picked my sketchpad up and started the preliminary drawings to prepare for the fifth piece.
Their bodies seemed more muscular in this pose. Perhaps it was because they were working harder to hold and support each other, but Stephen's biceps and Adam's thighs were bigger and more solid as they moved their bodies in a slow rhythm together.
I outlined their shapes and then said, "If I'd known gay sex could be like this when I was on the ship, I'd have had a try for myself... and I think I would have liked it!"
They kept kissing but they smiled at my comment. Then Stephen pulled his face away from his lover's and said, "You know, Michael... that's probably the nicest thing you could have said to us!"
"So this is spooning, is it?"
"That's what we call it."
"Well, I like it," I said. "I think I can really make this piece work. You both look very masculine and brawny... I can draw that out along with the sense of co-operation that your upright posture lends you."
I started filling in details, noticing that Adam's cock still bore traces of his earlier turn at penetration and making a note to include these in the final piece. Stephen seemed more comfortable to be taking the more active role in their lovemaking than I might have expected and both men obviously greatly enjoyed having sex in this configuration.
Then, as I sketched, I noticed that they were exuding an increasingly pungent smell. I could see from the slippery coating on Stephen's gently thrusting cock where it was coming from and I decided I would risk Adam's irritation by pointing it out.
"Your sex has... if I may say so... a rather interesting odour!"
"It's lovely, isn't it?" Stephen smiled, clearly wallowing in the warm bliss of his steadily quickening fuck. "It's sort of nutty and punchy... it turns me on so much!"
"When I fuck Stephen," Adam said more soberly, "he gives off a vaguely bummy aroma... you could probably hardly smell it. When he fucks me, I kick out a much stronger, meatier odour. Every man has his own fuck-smell. Mine is very rich."
"Well, it's not unpleasant," I mused, thinking that it actually smelled quite arousing. Stephen's bum odour had had my cock twitching in my trousers earlier and now Adam's rowdier stink was having a similar effect.
"I should hope it's not unpleasant," Adam glared down at me, signalling I was getting close to overstepping the mark. "It's the smell of Stephen loving me. It can sometimes get a little... well... earthy... but it's part of our lovemaking and it's something we both savour."
I continued my sketch, drawing in the jutting curve of Adam's gorgeously sturdy buttocks. I wasn't sure why I liked this guy's arse so much, but I had to admit it looked even more captivating with Stephen's thick cock now sliding more hurriedly in and out of it.
"I suppose, what I meant was, that given the origin of the smell, one might expect it to be unpleasant. But it isn't at all... it's actually quite nice!"
"It's not just the smell from my bum," Adam informed me as Stephen's hand started wanking him more quickly. "Obviously that's a part of it, but there are other odours too which contribute to the complex bouquet."
"I didn't mean to be offensive," I said, now sketching the chiselled profile of his chest with Stephen's hand around his protruding nipple.
"And no offense has been taken. The smell of gay anal sex comes from the combination of the two men's sweat, the anal odour of the man being fucked and the cheesier, more acrid aromas of the cock being masturbated out front. Each male pairing has its own unique sexual scent..."
"I suppose anal sex between straight couples is similar..."
"Not really, no. A man's fucked arse has its own distinctly pungent stink. And the recipient's cock being wanked off contributes more to the smell than one might expect... especially when the helmet is as large as mine is..."
I sniffed the air again and smiled, "You know, this reminds me a bit of the smell of the bunk room on ship... it never occurred to me what those guys must have been up to!"
How many times had I staggered to bed at the end of a shift only to find two men apparently asleep in their bunks with this richly musky stink hanging in the air? I recalled quite often discreetly masturbating under my blanket, enjoying the odour left by activities which I had never until now even suspected.
I started sketching Adam's cock, now fully engorged again and with the head a beautiful shiny purple. "Do you want me to paint Stephen masturbating your cock?"
"No, show that my orgasm has been achieved spontaneously."
"And how much of your cock, Stephen, do you want to be shown emerging from Adam's bum?"
"Four or five inches... make the shaft slick and streaky!"
"Aw yeah!" Adam guffawed. "Let our friends know that I give a sloppy fuck! Really layer it on... thick, brown and glistening!"
I decided that, given the rawness and masculine energy I was intending to capture in the painting, giving Stephen's cock a generous coating of Adam's soilage could actually contribute to the passion and power of the piece. It would show how forceful the fuck was, how intense the two men smelled together as they revelled in their rough sex. There was also the underlying theme of intimacy which Stephen had explained to me earlier, but I thought it would be better for this piece to draw out the animal ferocity of male-on-male sex, and so I decided that these men's sweat, precum and even Adam's shit would all play their contributing roles.
I chuckled to Adam, "You know... I stupidly thought you wouldn't enjoy this as much as when you were... well... occupying the back seat!"
He grinned down at me. "No I love it, mate! I've always loved having things shoved up my butt!"
"Oh yes... you told me... you're a big fan of anal masturbation," I nodded, drawing in the fine furrows etched across Stephen's scrotum.
"Exactly," he smiled more broadly. "And I can give you a proper demonstration of that in that solo sitting you mentioned! It'd make a good second painting, wouldn't it?"
I looked up at him, wondering again if he was actually coming onto me, knowing that I was married, heterosexual and quite a few years older than him. But then I figured he probably just liked parading his buff body and big cock to anyone who was willing to indulge him. His interest in me was purely as the flattering voyeur for his preening exhibitionism.
I finished off sketching Stephen's balls and then sat back to watch the two grooms-to-be make furious love in front of me.
"You got all the drawings you need?" Stephen asked breathlessly.
"Apart from the expressions you both pull when you climax, yes. I guess I'll just wait for you guys to finish off!"
Stephen surprised me by slamming Adam's back down and then grabbed him tightly by the hips so that he was fucking him doggy-style.
"Fuck yeah!" Adam cried out, now hammering his arse as roughly as he could back against Stephen's relentless pounding. Even as the recipient, Adam made remained in control of their sex, dictating the speed and force of the thrusts into his body and reaching back to grab Stephen by the buttock to urge his lover to drive into him more roughly.
"Cor..." I muttered. "This would make a really good painting too!"
"You fuckin' love it, don't you?" Adam leered over at me, as he withdrew his hand from Stephen's bum and started wanking himself off with strong, rapid strokes. "Seeing me gettin' shagged up my arse! Takin' his big cock like a fuckin' man!"
"Gonna cum!" Stephen cried out and closed his eyes tightly as he winced through his orgasm. I quickly sketched the key features of his face as he discharged his load: mouth grimacing into a feral snarl, nostrils broadly flared and forehead furrowed more deeply than the creases on his nutsack.
Adam pushed himself upright again and wanked himself even more quickly. "Keep fucking me!" he called out. "Keep fucking me 'til I've shot my nut!"
Stephen didn't need any further encouragement and kept hammering his spent cock in and out of Adam's arse. His semen made slurping noises as some of it squirted out of Adam's arsehole, and I made a note of how it frothed and bubbled down the backs of Adam's thighs. I could see what Adam had meant by his earlier remark that butt-cum sometimes looked like hot chocolate.
"Fuck yeah!" Adam bellowed, as his cock-plugged arse let rip with the mother of all man-blasts and his own cock shot a spectacular white arc high into the air. His orgasmic fart was gargantuan, a great thunder-clap of masculine triumph, and it seemed that on their wedding night the entire hotel would hear when it was over: when their hosts' consummation was finally complete.
Adam gasped and panted and flung thick ropes of goo out of his fist pummelled cock. I was amazed at how powerful his second orgasm was. His cock discharged its second load far further and for longer than I can manage even on my first attempt!
Adam's climax face was more celebratory than Stephen's. Whereas Stephen had look almost pained when he'd ejaculated, Adam looked like he was revelling in flinging his manly seed halfway across the room. His mouth was a broad grin and his eyes were alight with glee. It would be so much fun to paint these two cumming together in unison and showing their very different experiences of their orgasms.
"Oh fuck!" Adam said at last when the pumping of his hand had finally slowed to a stop. "You'll have to send me the cleaning bill, Michael. My muck's splattered all over the fucking place."
"It'll probably wipe off," I said. In my many dealings with the aftermath of conjugal accidents, I'd found that spunk would generally lift with warm soapy water.
Stephen pulled out of him, causing Adam's arsehole to hiss like a deflating balloon. The younger man's cock looked grim and gave off an appalling stink, and I quickly passed him over the box of tissues, wishing I'd paid a bit extra to get the fragranced ones.
"Doesn't the fee cover any accidents?" Stephen asked as he wiped what looked like silage from his bell-end.
