Donna awoke the next morning to birdsong and sunlight streaming through her bedroom windows. She checked her phone and was slightly annoyed to find it was still only 7.30 am. Her body felt like it was still on Greek time. She was hungry, she needed coffee, and she most definitely needed to pee.

She turned her head and smiled to herself at the vision that greeted her. There, sleeping soundly beside her was Sian. Naked, save for her lower half covered by the empty duvet cover.

The brunette trailed her fingertip softly along the sleeping nineteen‑year‑old’s skin. From just above her bottom to her shoulder. She gently ran her fingers through Sian's silky blonde hair, letting it fall like water from her hand.

The girl snuggled into her pillow with a sleepy but happy little sound.

"Sleep li'l one," Donna murmured before padding naked and barefoot to the bathroom.

Seeing no point in getting dressed, Donna brushed her teeth and went downstairs to make a coffee. While the kettle boiled, she ruminated on the last few weeks and the sequence of events that had led to her waking up in her own bed, naked and next to her best friend's teenage daughter.

She'd had her suspicions that Leigh now had a lover in her life. She'd also known for a long time that she'd had a crush on Beth. Hell, she'd had those thoughts about her best friend herself over the years on many, many occasions. She'd never made her move, though, for fear of ruining their friendship if her feelings on the matter weren't reciprocated.

She'd also suspected that her crush on Beth had been the primary motivation for her transferring schools to take her A-Levels. As opposed to staying at the local grammar school with Sian. She'd never actually entertained the notion that anything would come of it. Certainly nothing as wild as what was to come.

She'd in no way intended to embark on a relationship of any kind with Sian either. That had come completely out of the blue. Not that she was in any way complaining.

Leaning on the kitchen counter, she cast her mind back to the evening a few weeks previously when Sian had turned up on her doorstep. The girl was obviously agitated and on the verge of a meltdown. She was shaking and holding back tears.

"Hi Siany, Leigh's not here; she's at her...."

She couldn't even finish her sentence before Sian pushed past her into the house.

"Oh, I know she's not fucking well here," she seethed. "And I know where she damn fucking well is!!"

"Sian, sweetheart, calm down." Donna closed the front door and followed Sian down the hall.

"So, where is it you think she is? As far as I know, she's round at Diane's place."

"She...she's somewhere or other screwing my fucking mother."

Donna just stared at her, incredulous.

"What the hell are you even saying, Siany? What do you mean she's with your mum? Your mum's visiting one of her old mates in Margate, isn't she?"

"No, she bloody well isn't," Sian retorted. "She's in a fucking room, somewhere god knows where, asking your daughter what colour knickers she wants to fuck her out of!"

Sian had then recounted at length the phone call she'd made to her best friend. Culminating in the revelation that Leigh was blatantly lying to her about where she was. And more importantly, that she was with her mother. Her voice had been unmistakable.

Donna mused for a moment. So Beth had succumbed to Leigh's charms. She was a little surprised that her friend had actually caved, but didn't blame or resent her for it.

She'd known for a long time that Beth was in a largely sexless marriage and desperately frustrated. And by the same token, she'd raised Leigh with her own set of sexual ethics. Not quite 'anything goes', but close enough.

That was how she'd wound up a young, unmarried mother herself. The result of a drunken, but extremely fun, one-night stand with an older, very married man. She hadn't needed the man to go with the child and had never even bothered to tell him that he was a father. The fallout from his marriage was more than she wanted to inflict on his wife.

So in a way, it had been inevitable that Leigh and Beth would wind up in bed together sooner or later. Donna knew from long experience how persuasive her daughter could be.

She'd always told Leigh to own herself and her sexuality. Never apologise for who you are or make compromises to suit others. She'd told her daughter that if she liked someone, as long as the feeling was mutual and as long as nobody was getting hurt, she should go for it and just have fun.

Well, the possibility was that this could be an utter trainwreck for Beth, but you can't go back and 'unfuck your best friend's daughter'.

And she had to admit to herself, the mental image of Leigh and Beth in any number of pornographic positions was an immense turn-on. A turn-on equalled by the tight tank top and tiny little shorts that Sian had turned up in. She silently berated herself for even letting that thought enter her head, given the circumstances.

Donna went to the kitchen and took two beers from the fridge, popping the caps and tossing them aside as Sian made her way to the lounge and sat down on the couch.

She returned to find that Sian's initial anger had abated a little. Now she sat looking a little lost. Holding back tears. She sat next to the young blonde and put her arm around her.

"So, sweetheart, what's really got you so riled up about all this, eh? I'm guessing that finding out that your mum is only human after all is a bit", she paused, "overwhelming?"

"It's not just that Donna." She sniffed. "It's, well, it's,…" She took a breath. "I'm not gay!"

"Ohhh…kay," Donna replied with a raised eyebrow, surprised at this unexpected turn in the conversation.

"But," she continued, "I think I like girls a little bit too." She breathed out, like weight had been lifted.

"That's only natural, Siany; I like girls a little bit too." She took a swig of beer. "And now I'm guessing your mum realises that maybe she likes girls a little bit too." She smiled.

"Yeah, but last summer. I don't know if she told you. But, well, Leigh and I kind of played around a bit. Quite a lot, actually. We were both eighteen by then."

Donna fought hard to suppress a gasp. She hadn't seen that coming, and no, she most definitely hadn't been told.

"Oh, darlin', and you hoped you and Leigh might play around a bit more? Is that it?"

Sian put her beer bottle down and threw herself into Donna's arms, wrapping her arms around her with a strangled sob.

"Yessss. And now she's screwing my bloody mum!"

Donna couldn't do anything but hold the crying girl as she wrung herself out.

"There there, sweetie, shhh." She stroked her hair and tried to soothe her. "Leigh's always liked older guys and girls; please don't beat yourself up over her. Morals of an alley cat, that one."

Sian cried, shook, and cried some more. Until eventually she looked up at Donna with a wan smile.

"I know Mum and Dad aren't exactly close anymore. And I really can't blame Mum if she's happy. It's all just a bit of a shock, is all."

"It'll all be ok, Siany, and believe me, there are bound to be a million guys, or girls for that matter, lining up to get your attention."

She kissed Sian's forehead, a tender motherly gesture, and stroked her blonde tresses. An attempt to tell her that everything would be okay.

And that was when it happened. Whether it was the emotional stress, or Donna's strong physical resemblance to Leigh, or whatever it was, something prompted Sian to raise her head and softly kiss Donna's lips.

Donna pulled back in surprise, unsure of what to do or say. Unwilling to risk causing the girl anymore hurt by rejecting her. Instead, on a wing and a prayer, she looked into her eyes and kissed her again. And again. And again.

The pretty young woman melted into her with a whimper.

They'd spent the next couple of hours just making out on Donna's couch.

They didn't have sex, but they both knew, as Sian slipped outside to her car later that evening, that it was definitely a possibility.

Donna was pulled back to the present by the sound of the kettle boiling. She fixed herself a coffee and took it into the lounge.

Naked, she reclined on the couch and flicked on the TV to Good Morning Britain. Her mind soon wandered back to the sleeping blonde in her bed, though.

Other than sharing text messages, they hadn't gone any further until the trip to Corfu. The opportunity just hadn't arisen.

While Leigh and Beth had indulged in their supposedly secret trysts, unaware that anybody suspected, let alone knew about them, Donna and Sian had flirted discreetly and quietly deepened their relationship.

They'd touched fingers innocently across sunbeds. Shared kisses if they found themselves alone. Whispered lewd, dirty suggestions of what they'd do to each other when they got the chance. This slow courtship dance caused a steady, simmering tension to grow between them the whole time. Just waiting for the moment to present itself for passions to truly erupt.

Right up until the perfect storm of Greek heat, alcohol (and other things), dirty dancing, and the promise of Yannis' cock had led them to that citrus grove on that hot, balmy night.

As Donna's memory got hotter, her coffee sat forgotten and rapidly cooling. She remembered the feel of Sian's lithe young body as they'd danced.

"I think Yannis wants you as much as I do," Donna had whispered in her ear as they wound together.

"I don't think he'd turn you down either," she'd replied. "I think we should give him a treat, don't you?"

Sian had been the real instigator of their impromptu threesome. Donna, a more than willing co-conspirator.

She remembered the iron-hard bulge of Yannis' manhood rubbing blatantly against her on the dancefloor. The naughty feeling as she'd almost exposed Sian to the world. Her hands dragging her dress up her slim, young thighs. She gasped as she relived the thrill of him lowering his shorts as they sat on the bench, revealing his overly large, veiny, throbbing manhood. Twitching in time with his pulse.

Her hand wandered over her naked breasts and slowly down her abdomen. She recalled sinking to her knees, giving Yannis a long lick before offering him to Sian.

In her mind's eye, she relived the exquisite experience of easing the girls' soaking knickers aside. Revealing her perfect, glistening pussy with its well-manicured patch of blonde curls.

Her racing imagination recreated Sian's satisfied mewl of pleasure as she'd taken Yannis in her mouth. The gasp of lust as Donna had dragged her tongue over her musky, wet sex for the first time.

Donna lazily stroked herself, remembering kissing the stray dribble of cum from Sian's lips. She revelled in the memory of a night of pure unbridled 'fucking' that same night after the girls had silently struck their deal.

Bethany hadn't even hesitated to give her consent. Each woman knew that their friendship was about to enter new territory. Something that couldn't be undone. They were about to screw each other's daughters. And each knew there was no possible way this would stay in Corfu.

They'd been naked in seconds. Donna, eager to reprise her role as a teacher. Sian, for her part, proving to be an apt and eager pupil. And even more experienced and dirty-minded than Donna had anticipated. They didn't stop until the light of dawn filtered into the room. The accompanying soundtrack of Leigh and Bethany doing the same next door had only fuelled the fire.

As her need grew, she pulled her knees up, sliding her left hand under her thigh to tease at her now dribbling pussy while her right hand diddled her stiff clitoris.

"Hey!"

The unexpected admonition dragged her from her deliciously sordid reverie.

An equally naked, sleep-tousled Sian stood at the end of the couch by her head. She knelt down, placing her hand over Donna's as she leaned down to kiss her.

"You started without me!" She pouted cutely.

Her fingers entwined with Donna's over her soaking sex as she kissed her again, slipping her tongue into the older woman's mouth.

They paused for breath, and all Donna could manage was a gasp.

"Fuck!"

Sian responded with an almost evil giggle.

"That's the plan."

She lifted her hips and pushed her butt up off the couch as Sian's fingers joined those of her left hand. Slipping inside her all too easily. Her palm covered those of her right, forcefully rubbing her engorged clit.

Neither woman had showered in over 24 hours, but their combined musky, slightly sweaty, wholly unwashed scent only served to arouse Donna further. She'd never admitted it to anyone, but the smell of the girls' gym changing room at the end of the day had driven her to masturbate more times than she cared to count.

Donna humped upwards into Sian's palm, their tongues tangling. But she needed more.

She dragged in a breath and whispered, "Ride my mouth, babe."

Sian gave a whimper and stood up, her hand not leaving Donna's dripping, lust-swollen pussy. She elegantly swung her right leg over Donna's head and straddled her.

Donna gave a moan of pure wanton lust as Sian hovered above her for a moment, giving her an all-access view of her slim-lipped, very wet pussy and tight pink rosebud.

Donna tried to pull the girl down to her needy lips, but her arms were momentarily trapped by Sian's knees. She took advantage of her lover's prone position and dragged herself along Donna's face. Donna rewarded her with a cry of pure ecstasy as she inhaled her scent.

As Sian's hips rolled lazily above her, Donna leant up, extending her tongue. Softly licking from the girl's pussy to her pulsing, most intimate hole.

She pushed her face between her pert, tight cheeks. Sian's body stiffened as the tip of the woman's tongue entered her before relaxing into the invasion and sinking down lower, allowing her tongue a little further in.

She performed a kegel, giving Donna's tongue a loving squeeze before lifting her bottom.

"Fuck me, you dirty little minx," Donna managed to choke out as she dragged in a breath.

Sian splayed her knees, allowing her lover some freedom to move. Donna instantly grabbed her hips, pulling her urgently to her mouth, driving her tongue deep into her. Her lips sensually working the girl's rapidly swelling labia.

"Jesus fuck!" Sian moaned, sinking lower onto her lover's tongue.

She redoubled her efforts and almost brutally finger fucked Donna in return.

She dropped her young, slim body on top into a classic sixty-nine, surrendering to Donna's frenzied ministrations, which were eagerly reciprocated. The pretty young blonde buried her head between Donna's thighs.

She swabbed the older woman's sex with her tongue before claiming her clit in her lips as she twisted three fingers into her.

Donna kept up her relentless oral assault until she felt Sian begin to clench. Feeling her imminent climax, she drove two fingers into her, massaging her G-spot to finish her off.

Sian writhed, trembled and finally stiffened as her orgasm ripped through her. Her moans and rapid licking proving enough to trigger Donna's own happy ending. Their combined cries of release filling the air around them.

They collapsed in a sweaty, femininely scented tangle. Gasping for air, taking a few moments to recover.

Sian rose a minute or two later and shifted her position, straddling Donna's hips to face her. A smug, satisfied grin on her face.

They kissed. A long, unhurried, sensual French kiss. Sharing their flavours, enjoying the closeness of their shared afterglow.

"So, what else do you fancy doing today, sweetie?" Donna asked, smiling as she took in the view of her lover's pretty, flushed, pussy-glazed face.

Sian scrunched up her face as if deep in thought.

"Well, it is the holidays, and I really fancy a lazy, skanky kinda day."

She bit her lip and rocked her hips, enjoying the aftershocks coursing through her young body. Smearing her sticky, post-orgasmic pussy on Donna's tummy.

"So as long as it involves takeaway pizza delivery, not showering and a lot more of this..." she paused.

"We can do whatever the fuck you want."

"You dirty little minx," Donna stated once more with a laugh, reaching for her again.

"Come 'ere."