I could feel my heart pounding as I followed into the hallway. I knew where this was going and couldn't control my nervous anticipation. In my defence, it was barely half an hour since the most intense sexual experience of my life, and now I found myself being beckoned by my gorgeous girlfriend and her half-naked, nymphomaniac friend, to join them. Join them in the bathroom. For a piss? Yeah, right.

I was already picturing sordid scenarios, images my mind usually reserved for nights at home with nothing better to do than stroke a hand up and down my shaft, the inconceivable fantasies conceived by my overactive imagination often the catalyst leading to a lonely orgasm.

I tried to pull myself back to reality. A threesome with two incredibly hot, horny girls? It simply doesn't happen. Not to me, anyway. Okay, Nadia had already demonstrated her insatiable deviance. So I could be on the right track, at least when it comes to her, couldn't I?

But Nicola? Love of my life, completely infatuated. As much as I avoided acknowledging it, we both felt the same. The mind-bending, otherworldly sexual rampage of that very evening was a testament to that.

She didn't even like girls, did she? That's what I thought at least...but then, the spark which set her on her way to sexual revelation, begging for my cock as she'd never done before, was watching two of her female friends fucking each other.

But still, did I really want to share my girlfriend with anyone? Even someone as attractive as Nadia, her dark skin and decisive confidence so alluring to all whom she passed?

My mind quickly conferred with my penis and came to a conclusion.

Yes. Yes, I did want that.

If it had been another guy I would never have entertained it, but Nadia was pretty fucking irresistible.

If Nicola wasn't projecting her arousal and want so blatantly, I would've played it down.

Yet, if she was as game as she appeared, would I really pass up this opportunity? Like hell I would.

I entered the bathroom behind the girls, Nadia quickly closing the door behind me.

She had already been naked from the waist up, her tits on display, when Nicola and I had first walked back into the house. It seemed that, following her hot tub exploits, she hadn't bothered putting her clothes back on. Her only covering was in the form of a tiny pink thong, the minimal material barely covering her plump mound.

Her nipples stood erect on her flawless breasts, which had not been the case just a few moments prior as she sat lounging in her chair. The hallway must have been far colder than I had realised. Unless, of course, something else had caused such a reaction.

The moment the lock clicked shut on the bathroom door, Nadia hooked her thumbs into the waistband of her underwear, sliding them down her long smooth legs and kicking them off her feet.

My cock immediately reacted to the sight of her prominent labia, the bulge in my shorts more evident. I shot Nicola a fleeting glance, nervous that she may not take kindly to my conspicuous appreciation of her naked friend. To my relief, she smiled. She's blessed with common sense - just another of her many qualities - and therefore understood that such a vision would leave even the strongest of men as hard as a rock.

Nadia, completely unconcerned by her nudity in our presence, lifted the toilet seat. She sat on it as far back as possible, intentionally leaving her pussy on display, and released her bladder. Even as we watched her piss splatter into the water below, her clitoris visibly became engorged. It wasn't clear what was getting her off more: the steady stream of piss dripping down her cunt, or Nicola and I staring at her naked body.

As if it were the most normal thing in the world, no different to being sat chatting in a cafe, she cut straight to the chase.

"You two sounded like you were having a good time out there."

Nicola and I looked at each other, conspiratorial smiles on our faces, as we thought back to our erotic exploits.

I don't think either of us was sure how to respond. But after a moment, Nicola giggled and said, "We were indeed. Nadia, you don't know how badly I needed Sam's dick. I've never felt so turned on in my life. I've never cum so hard or that many times, and I still feel horny now." I couldn't help but smile with pride, but I also couldn't hide the erection pressing against the front of my shorts.

Nadia had noticed the bulge forming in my pants, and was eyeing up my shaft in much the same way I had leered at her breasts. I have to say, feeling her eyes probing me so intensely, I understand why she enjoys flaunting herself.

"So I'll just say it. I want to fuck you both. Right now."

My heart skipped a couple of beats, even though I wasn't particularly surprised by Nadia's admission. Her intentions, however, had apparently only just become clear to Nicola, whose face fleetingly held a look of shock. The look quickly turned into a smile as she realised she should have seen this coming from a mile away.

Before either of us could respond, Nadia continued, "I noticed you weren't there when we went back in the house, so I said I'd go look for you. I heard you from halfway down the garden and simply followed the noise. I didn't expect to find you actually shagging on next door's lawn though, you dirty fuckers. Do you always fuck each other like that? You both really wanted each other. If it hadn't been so obvious, I would have interrupted. I thought I'd better not, though, so I, erm, just watched for a minute. Well, for a bit, I guess. Actually, I'm not really sure how long, but I only made myself cum once! Urgh fuck sake, my cunt is dripping again just thinking back to it."

To emphasise her point, she placed her hand between her legs and inserted two fingers as deeply as possible. She removed them with a satisfying squelch and waved them at us. She certainly wasn't lying; her fingers were coated with her own juices.

Nicola looked over at me, apparently gauging my thoughts. Surprisingly, I didn't see any trepidation in her eyes, which I had expected to see. I met her gaze as impassively as I could, but I couldn't suppress the grin on my face. I shrugged my shoulders, letting her know she was in control of where this went.

Nadia stood up and flushed the toilet. Her hands instinctively moved to her chest, caressing her perky breasts, as she made a final request, "Even if you're not up for it, can I just watch the two of you fucking each other a while? You can pretend I'm not actually next to you fingering myself like mad."

"Nadia, it's fine!" Nicola said loudly before her friend could make any more requests.

"Tonight has been weird. I really thought it would be a few drinks and kinda chill. Yet I've fucked longer and harder and more incredibly than ever, but I'm still so wet I'm dripping down my leg."

This wasn't the kind of thing Nicola usually said. Where the hell had this come from? Oh, I remember...

"If you remember, Nadia...the reason we were in such a state in the first place was you lot going at it in the hot tub. I've heard of strip poker at college parties, but that was like a full-scale porn film."

"Yeah, exactly, It was all your doing!" Nicola said, my comment reminding her. Nadia was looking almost dejected, seemingly thinking she wouldn't get her wish.

Nicola ummed and ahhed, pretending to contemplate the proposition that she'd already, in her mind, accepted, "Well, I think the least we can do is repay you for inspiring such a good time."

As if reading my mind, she continued, "I've never been with a girl, but if there's ever a time, it may as well be now. To be honest, I'm getting wet just thinking about it. Also, based on that lump in Sam's shorts, I think it's safe to say he's game."

She reached out and squeezed my cock.

I wouldn't have thought it possible, but it got even harder.

"But I don't want to do anything if you don't want to," she said to me, completely sincere. The small concern I had, that she might only agree to Nadia's proposal to please me, was instantly dismissed.

I nodded my agreement, "Yeah, I suppose we can give it a go. If it's what my love wants, how could I say no?" I gave her a playful wink.

Suddenly the air was filled with sexual tension, all three of us radiating lust.

I placed my hand under Nicola's dress. Her saturated pussy lubricated my hand. I showed the two of them my sopping fingers, just as Nadia had done moments earlier, before putting them in my mouth to taste the sweet nectar.

"Well, I'm already naked." Nadia pointed out, "Why don't I help you two out of your clothes as well?"

In chivalrous fashion, I gestured Nadia in Nicola's direction. Ladies first, after all. Still, I couldn't help reaching into my shorts as I watched my girlfriend melt under the gentle caress of her friend. They both moaned softly as their lips locked in a firm, passionate kiss.

Nicola raised her arms, helping Nadia to lift off her dress. She kicked off her shoes, joining her friend in a state of total undress.

Like Nadia, Nicola's body held the physical signs of her arousal. Her nipples stood to attention. Her thighs glistened with her leaking fluids.

"I'm so turned on right now," Nicola said.

For a horrifying moment, I thought she had fainted. However, she just dropped to her knees in front of Nadia.

She inhaled deeply with her face inches from her friend's pussy, basking in the scent. Quite the bold move for a novice lesbian!

She didn't dive straight in, but instead started planting soft, delicate kisses all over Nadia's pubic area and upper thighs.

"Do you want me to touch it?" She teasingly asked as she looked up.

"Yes! Touch it! Lick it! Stick as many fingers in it as you can!" Nadia shouted.

It was clear that Nicola was doing her best to mimic the actions she had witnessed between Lydia and Nadia earlier in the evening.

"I thought you liked to be teased." She was driving Nadia crazy, denying her to the point it felt almost cruel. Finally, unable to bear it any longer, Nadia combed her hands through Nicola's hair, her fingers locking behind her ears as she forced her friend's face towards her hungry mound.

She sighed in delight as Nicola's tongue finally slid between her large, dark labia and disappeared inside her hole.

As much as I was enjoying the show, I was starting to feel a bit forgotten. I moved beside Nicola, who was ferociously going to work between Nadia's legs. Nadia's moans were punctuated by occasional squelching sounds as my first-time-lesbian girlfriend committed fully to her task.

I ran my hand through Nicola's hair as I stood beside her while she crouched. She briefly smiled at me before refocusing her attention to Nadia's needy cunt.

Nadia leaned in towards me; her lips met mine as she kissed me hard and deep. Her soft, moist lips locked with my own for a blissful eternity. Her tongue explored inside my mouth, and I returned the favour gladly. I was shocked at how her passionate intensity transmitted itself, her heightened state of arousal seemingly on a par with that which Nicola and I had experienced together.

Her hand grabbed my dick through my shorts, traversing my full length as she assessed the adequacy of my package.

"Well, I see why Nicola agreed to share. There's more than enough meat here to feed the both of us," she complimented. "Take off your shorts. And your shirt. I want to see your rock-hard cock disappear down her throat."

I submissively followed her order, stripping off my clothes. Now all three of us were naked. As Nicola continued eating Nadia, I moved my hands to her breasts, kneading the perfect mounds, pinching her nipples roughly between my fingers. Between our frantic kisses, she was nibbling on my ears, sucking on my lips, and squeezing my arse.

Nadia's overheating body was shaking as she got close to the abyss. She bucked and screamed until, finally, she succumbed to Nicola's persistent stimulation, writhing against my girlfriend's face as her orgasm swept through her body.

Nicola stood up, grinning with satisfaction, relishing her part in her friend's pleasurable climax. Nadia stood leaning against the sink as her knees regained their feeling.

Once Nadia was able to support her body weight, she beckoned Nicola towards her, embracing and kissing her passionately. She then sank her fingers into Nicola's sopping cunt. She thrust them in and out repeatedly as my girlfriend moaned in ecstasy, an appropriate 'thank you' for having made her cum.

Nadia was dictating proceedings in a manner that was much rougher than Nicola and I were used to when we were alone. Yet, it was no less erotic, no less sensual, and no less potent in its ability to make one's head spin, as desire and lust take over the brain.

The bathroom was larger than usual, which is not surprising considering it was located within a mansion. Almost half of the space was occupied by a giant walk-in shower, undoubtedly convenient when returning from the hot tub through the side door.

"Sam, lie down in the shower, and Nicola, kneel between his legs and open yours wide as you take him in your mouth."

Completely subservient to her, we took up our respective positions. Nicola took a firm hold of my shaft, my cock pointing towards the ceiling. I shuddered as she delicately worked her tongue over my balls, her gaze fixed on me the entire time.

Her stance meant her arse stuck out behind her, offering a clear view of the tight hole between her cheeks, not to mention her parted, puffy labia, slick with her wetness.

Nadia positioned herself between Nicola's parted legs, her feet moving towards mine as she edged herself closer to us until her mouth found Nicola's inviting sex. She sighed with contentment, taking in the beautiful sight in front of her.

Nicola was struggling to stay composed. The torturous denial she'd forced Nadia to endure, repaid in kind. Desperate for stimulation, she thrust herself back, covering Nadia's mouth with her sex, the moist lips of Nicola's pussy drowning her friend with a wave of arousal.

As soon as she felt the pressure on her clit, Nicola groaned, sighed, then sank my throbbing penis down her throat. It felt incredible as my knob was encased in the wet warmth of her mouth. Her tongue lapped the underside of my shaft as she enveloped me with her lips, her head moving rhythmically as she pleasured me so expertly.

Nadia was circling her own clit as she tongued Nicola's pussy, sucking on the folds of her labia, thrusting her tongue as far as she could into her hole, switching her rhythm from circling her clit one minute to flicking it up and down the next.

Taking initiative, but unable to reach with my hands, I stretched out my feet under Nicola's body towards Nadia. With one foot, I used my heel to spread her buttocks, while my toe teased between her gaping lips. The other foot reached between her parted cheeks to probe her anus.

Thankfully, our earlier exploits had emptied my ballsack. It was therefore a little easier to refrain from unloading in Nicola's mouth as she devoured my cock.

As it transpired, it was Nicola who came next. Releasing my cock from her mouth, she howled in ecstasy. Nadia withdrew her hand from her own pussy and forcefully inserted three fingers into Nicola's. She slammed them as hard as she could, repeatedly thrusting in and out, filling her up, until Nicola's screams echoed in our ears.

A final thrust, and Nadia retracted her hand. As she did so, a rush of liquid pleasure coated her face; she had fucked my girlfriend so hard it induced an explosive squirting orgasm.

This really was turning into a night of firsts. Had it not been so incredibly hot, I might have been disappointed that I wasn't the one bringing her to such intense pleasure.

Even in her post-orgasmic state, Nicola's mouth found its way back around my cock. It was more than I could handle.

She felt the irregularity of my breathing and took it as her signal to swirl her tongue around the sensitive tip.

Performing moves she had never demonstrated before, she enveloped her lips around the rim of my knob, her tongue exploring the underside of my shaft, and flicking back and forth over my urethra.

When I warned her of my imminent climax, she started stroking my shaft with her hand while continuing to use her lips.

Releasing me from her mouth when she knew I was there, she continued pumping my prick in the direction of her waiting, hungry mouth.

I grunted loudly as I unloaded a huge load of spunk into her mouth. A second, third, and fourth spurt followed, painting her lips and cheeks with my hot ejaculate. She let out a delightfully manic laugh as she swallowed that which had found her open mouth. Wiping my cum off her face, she turned and fed it to Nadia, who eagerly lapped it up, before licking the remnants directly off her cheek.

Spent, we lay together in a crumpled heap of sexual exhaustion. Nicola had collapsed on top of me, her head resting cosily on my chest, her arm wrapped around my neck, the tender display such a reassuring moment of bliss. I felt comforted and safe, knowing that this wild sexual adventure would not diminish our love.

Nadia was the first to sit upright. Nicola, sensing hesitation about intruding on our moment, took her friend's hand and directed her to snuggle with us. She, too, pressed her face into my chest, her nails gently caressing Nicola's back. Perhaps Nadia did have a softer side, one that only emerged after intense and passionate sexual frenzies.

"Wow. That was amazing," Nadia said. Nicola and I smiled in agreement, too content to speak.

I think we must have dozed off lightly. What felt like seconds later, I stirred as Nicola raised herself to her elbows. As she blew her cheeks out in disbelief, I looked up at her, surprised to see the dangerous glint of depravity had returned to her eyes.

The girl was insatiable.

She opened her mouth to speak but hesitated.

Finally, she couldn't refrain from exposing her darkest desires, and said, "We should do this more often. Also, um, I don't know about you two, but I'm still fucking horny."

Then, looking directly at Nadia, she sheepishly said, "This may be too much, but, well, we did come in here to use the toilet, right? I know you've had a bit to drink tonight, and I was thinking...that...maybe I could be your toilet?"

The kinky bitch. I would never have dreamed of asking her to do something like that! Now it turns out she fucking wants to be pissed on!

Nadia seemingly took her time to ponder this dirtiest of suggestions. Eventually, a huge grin spread wide across her face, she answered, "You know what, I've always wanted to do that!"