My 19-year-old girlfriend, Julie, was standing there, stark naked, flushed and dishevelled after the fucking of her life. Stood next to her firm young body was Mark, also naked - tall, muscular and handsome, with his impressive manhood and balls openly on display between his legs. Even semi-deflated, his cock still looked much bigger than my average six-incher.

It’s the image that sort of sums up that strange, sex-fuelled night. Mark’s arm was draped possessively across Julie’s shoulders. It showed that she was his, to do with what he liked. And his control and power was just as clear in his words: “This babe’s staying the night,” he’d said - and I could either stay or come back to pick up my used (and undoubtedly cum-filled) girlfriend in the morning.

But it wasn’t arrogance or dominance on Mark’s part, not really. He was just a confident and charming bloke, at least 10 years older than us, who we’d bumped into in a local pub one night. He was someone you just couldn’t help but like. And before I’d really been aware, he was openly seducing Julie in front of me, persuading her to secretly slip her knickers off, feeling her up under the table and then inviting us back to his hotel room.

In the taxi on the way to his hotel, he’d openly fingered her on the back seat, first pulling her skirt up and spreading her legs, so I could see his fingers slipping knuckles-deep into her soaking wet cunt as they snogged. And to be honest, that’s the memory I still wank to the most. It was when the whole dynamic of the situation changed. Before that, we’d been two young innocents, doing something a bit risque and naughty, but being too sexually naive to know where it would likely lead. Now suddenly, Mark was in charge and the night could only end with one thing - him fucking Julie and filling her fertile young cunt with his seed. But it began with her sprawled wantonly on the back seat of that taxi, thighs spread to give this dominant older man full access to her sex.

And once we were in his room, he did fuck her, ramming her like a bull before flooding her womb with spurt after spurt of hot cum. He’d let me fuck her afterwards - my first awesome experience of slipping my dick into the delicious goo of sloppy seconds. He’d said I could “keep her on the boil” while he recovered, but probably he wanted me to be responsible if Julie got pregnant.

Next, he’d tongue-lashed her clit and fingered her dripping cunt until she’d exploded into a huge orgasm, all while I’d held her squirming body down. Again he’d mounted her, this time mauling at her tits and biting and pinching her nipples as she responded like a sex-depraved slut. After another earth-shattering orgasm for Julie, I’d watched as Mark had emptied his balls into her eager mouth.

My turn had followed, and while I’d lasted longer than the first time in Julie’s gaping, sperm-drenched pussy, I’d finished too quickly, splashing a few pathetic spurts of jizz on Julie’s belly as I’d tried unsuccessfully to copy Mark by pulling out to cum in her mouth.

And that’s when Mark had ushered Julie off to the shower, leaving me to decide whether to stay or go.

He’d pointed to a sofa against the window that I could sleep on, and what decided me was the stack of bedding piled up on the windowsill beside it. It was obviously a single sofa-bed.

It felt a bit weird, struggling to pull out the bed and sort the bedding while my girlfriend shared a shower with a stranger who’d already given her two massive orgasms. Plus, I was still naked, my flaccid cock now crusted with dry cum (my own and Mark’s) and Julie’s pussy juice.

When they emerged from the shower, my bed was ready and I’d even folded up all the clothes (though I’d not found Julie’s knickers!). They were both smiling and flushed pink - I don’t think they’d fucked in the shower, but they’d obviously been playing around because Mark’s cock was now semi-erect and Julie’s tits looked red from groping not just hot water.

I stood there awkwardly, suddenly aware of how young and weedy looking I must look in contrast to Mark.

“So you’re staying, are you?” Mark said. It wasn’t a question. “You don’t mind if we just hit the hay - I’ve got a big day tomorrow.” 

His words were polite, but his control was still clear. He nodded to Julie, and she climbed, butt naked, into the double bed.

I headed meekly towards the toilet.

When I came out, the room was dark, and there was no noise beyond breathing as I groped my way quietly to my single bed. I’ll be honest, despite (or maybe because of) all the stuff that had gone on over the last hour or so, I fell instantly asleep.

I awoke some time in the night to the rhythmic sound of fucking in the double bed beside me. Not hard, frantic fucking like it had been earlier - just the regular creaking of the bed and soft, satisfied grunts from Julie. Mark’s engorged cock was obviously thrusting deep into her gaping wet hole. I was instantly hard and I began to stroke myself in time to Mark’s thrusts.

The bed began creaking faster and faster and Julie’s grunts became louder and louder. Then I heard a long drawn out, “Oh fuck!” as Mark must have released yet another flood of seed far into Julie’s fertile young womb. They whispered and giggled for a bit, then both took it in turns to go to the loo before soon the room settled down again.

Despite begin so turned on and wanking quietly while listening to Julie getting fucked yet again, I couldn’t manage to cum myself, and just fell asleep with a raging hard on.

When I next woke, it was obviously after dawn because light was seeping round the edge of the curtains next to me. Certainly there was enough light to see Julie’s upper body, riding Mark’s cock beneath her. She was slowly grinding herself backwards and forwards, her eyes glued to his face hidden from my view. But I could see his big, strong hands kneading her firm tits and pulling and twisting at her swollen nipples.

I very much suspect Julie had initiated the fucking this time, mounting Mark when she woke up feeling horny (she’d sometimes done that to me when we’d been away). She continued grinding her pubic bone against Mark and the pleasure of that - and the feeling of his big cock filling her cunt - was obvious in her face. As she built up towards har orgasm, Mark’s mauling of her tits became more violent, leaving angry red finger marks in her pliant flesh, and I could see he was now pushing upwards to meet each of her downward thrusts.

Her climax came suddenly. It wasn’t a full-on, back-arching orgasm like the ones in the night - she just began to shudder, her head thrown back and her tits jiggling beneath Mark’s hands. Then she collapsed forward onto his chest.

Mark was obviously now stirred up to give her a good early morning pounding. He almost heaved her off him and out of the bed, positioning her in front of the mirrored table that ran most of the length of the wall in front of the bed. Grabbing a pillow he jammed it on the table, then lifted her leg so her knee was resting on it. At the same time, he pushed her forward so she was leaning over the table, her face almost touching the mirror. Then Mark stepped back so he could admire the sight in front of him.

I don’t know if he’d deliberately done it so I’d also get a view of Julie’s oh-so-fuckable loveliness (neither of them had so much as glanced at me) - but there she was, fully exposed to our avid eyes. From my angle, I could see her ripe, rounded buttocks, divided by the deep crack that led down to her light brown poo hole and then to the fleshy lips of her cunt, gaping slightly open by her raised knee. I could also just see one of her heavy tits hanging down in the mirror.

Then Mark was rubbing his swollen bell end at the entrance to her love hole. This time it must have been for my benefit, because he was standing to one side, just slipping the tip of his cock in and out, coating it with the slickness that was clearly oozing from Julie’s willing cunt.

He shifted until he was lined up behind her. One hand slapped down to grip her hip, while the other gathered a handful of her hair. He pushed forward, his cock sliding fully in (I couldn’t see it, but I heard Julie gasp), then he pulled her head back and leant forward to speak into her ear.

“A quickie before breakfast, babe,” he said before pulling his hips back and slamming them forward.

Julie gasped again. He still had her head pulled back, and I could see her exposed neck and her screwed up face in the mirror.

Mark pulled back then slammed forward again, then again, and again. I could see Julie’s tit jumping and ripples running across her arse cheeks with each hard thrust. Her gasps became almost continuous as Mark began to speed up. The whole table was shaking, and Mark was now clutching at Julie’s throat with the hand that had been on her hip - and then he came as suddenly as Julie had earlier. One violent thrust forward, then six or seven shuddering jerks as his balls emptied into her womb yet again.

“Oh fuck,” he said as he stepped back - giving me the glorious sight of Julie’s exposed sex again, her cunt truly gaping wide now, as a flow of white cum poured from her hole.

“Clean me up, babe,” Mark ordered. “I’ve got to get going soon.”

Julie, who’d remained slumped over the table, straightened up and then  obediently knelt in front of him. She grasped his semi-erect cock and swallowed as much as she could, sucking up all the cum and love juice it was coated in. Then she began to lick all around his cock, cleaning him as he’d requested.

Finally, he pushed her away. His cock had begun to swell again.

“God, babe, I could fuck you again - but I’ve got to go.” 

But instead of immediately getting dressed, he ordered her to get on all fours on the bed, her head towards him. Again, she instantly obeyed.

“One last suck, babe,” he said, “while boyfriend takes his turn.” He glanced at me. “Fair’s fair, mate.”

Like the previous two times he’d let me fuck my own girlfriend, I was in there like a shot. I was already ramrod stiff from watching them fuck, and for the third time my willing cock slipped effortlessly into Julie’s cum dripping cunt.

“Pull her head back,” Mark ordered.

I copied what he’d done earlier, grabbing a handful of hair, and pulling her head up.

“Open your slutty mouth,” Mark said, and when Julie obliged, he began thrusting his cock in and out. “Oh yeah, oh yeah.”

Then he pulled away.

“Fuck, babe, sorry - gotta go.”

He grabbed his pile of clothes from the end of the table (where I’d folded them!), then disappeared into the toilet.

“What are you waiting for,” Julie said, almost angrily. “Fuck me, you bastard.”

I’d been trying my best not to cum too quickly, but with that I began to thrust more rapidly. Julie shook my hand away from her hair and collapsed forward onto her elbows, thrusting her firm arse back towards me. Again, I didn’t last long. It felt as if I could slide all the way into her slippery cunt, made loose by Mark’s much bigger cock - and then suddenly I was cumming, adding four or five of my own spurts to the slop of cum and juice that was already swilling inside my girlfriend.

When Mark emerged from the bathroom, we were both still naked but lying back  on the bed, not speaking. Mark grinned at Julie, bent forward and gave her a long deep kiss, while kneading her firm young tits.

“God, babe, I wish I could stay,” he said. “But hey - you love birds have got the room til ten. Enjoy!” 

Then, grabbing his bags, he was gone …