When Rob eventually woke up the next morning, he was alone.
Wondering if he had dreamt the events of last night, he looked across to the other bed and was slightly alarmed to see that it was empty. Just as he was about to get up to investigate the bathroom door opened and his mother, still completely naked, walked back in.
"Finally, you're awake" she smiled and slid under the sheet next to him.
"Mum, what did we do last night?" he asked obviously still trying to come to terms with what had happened, "I... mean... we..."
Kelly cuddled up to him one hand sliding beneath the covers to take hold of his cock, lightly caressing it, "Well to put it quite bluntly, you fucked me. But before you say anything else you need to know that I wanted you to do it."
"Jesus Christ mum, that's..." Rob started to say before she kissed him on the lips, cutting him off mid-sentence.
"Wonderful, amazing and incredible." She told him, pulling her mouth away from his and giggling, her nimble fingers quickly stroking his shaft to its full tumescence.
"Oh shit.... mum... what are you..." he groaned feeling his prick rapidly responding to her touch.
Her mouth found his again, interrupting him, her tongue darting in to play against his in a long deep passionate kiss.
"Fuck me, Rob. Please. I need to feel you inside me again." She whispered as her lips pressed to her son's.
Unable to resist he rolled her onto her back and eased his 6' 2" bulk over her petite frame, looking into her deep blue eyes.
"Mum... I... we... we shouldn't..." he started to say.
Spreading her legs wide as he loomed over her Kelly reached down, her fingers guiding his cockhead to her slit, rubbing the bulbous tip between her slightly swollen labia.
"Put it in me. Please baby. Fuck me!" she gasped as the first couple of hard inches slipped into her tight entrance.
Knowing it was wrong but unable to stop himself Rob thrust in hard, burying the remainder of his rampant length in his mother's cunt in a single firm stroke.
"Oh fuck, mum!" he exhaled as he felt the soft velvet walls of her vagina close around his prick.
Beneath him Kelly squirmed as he speared her on his shaft, bucking her hips up off the bed to meet his long deep strokes every time he drove his cock into her with increasing vigour. Around his dick her soft plump labia clung to his girth, folding in and out as he fucked her hot pink slit.
"Oh god yes, yes... oh Rob fuck me, fuck meeeeeeee!" squealing with delight Kelly drew her knees back and pushed her thighs wide to give him complete unobstructed access to her sex.
The bed was soon creaking loudly again, its steady squeak matching Rob's easy rhythm as he worked his hard length into his mother again and again.
With her muscles clenching around his solid rod, he knew he wasn't going to last long but he tried to hold back wanting to bring her to a climax before he emptied himself into her.
"Fuck... aaahhh... oh fuck, fuck.... Mum... oh shit!" with a series of almost unintelligible gasps Rob's body spasmed and jerked as he pistoned his cock into his mother's pussy forcing it as deep as he could.
"Fuck me... don't stop please... fuck meeeeeeee!" moaning loudly she thrashed beneath him, her nails raking his shoulders as she clung to him.
Grunting with each stroke Rob slammed his erection into his mother's slim frame sending her closer and closer to the precipice, "Ungh... unhhh... aaahhh... unhhhhhhhhhh."
Writhing against his firm physique she flung her arms out wide, her fingers clutching the sheet tightly as she pressed her body against her son's, her spine arching upwards, the sensations growing rapidly in her belly.
"Yes, yes, yes... oh fuck.... yessssssssssssssssss!" shrieking in ecstasy Kelly came hard, her slender frame convulsing almost uncontrollably in the throes of her orgasm.
"Unghhhhhh... Uhhhhhhhh... Fuckkkkkkkk!" feeling her cum Rob lost control, his body tensing while his prick pulsed, spurting again and again, pumping another copious amount of his seed into his mother's belly.
Spent they clung to each other for a minute, Rob's weight pressing her into the mattress as they panted for breath.
Finally, still a little breathless, he rolled off his mother and collapsed next to her allowing her to cuddle up against him.
"You're something else mum." He told her, slipping his arm around her and pulling her close.
She stroked her fingers across his chest and looked up at him, "I've been thinking Rob. About us, here together."
"Oh. What about it?" his reply was apprehensive and succinct.
"Well, me being here with you instead of Henry has kind of ruined your holiday, hasn't it? At least as far as chasing girls goes." Kelly stated frankly, reminding him of what they both knew to be true.
"Ok yeah maybe a little bit but that doesn't really matter."
She pushed herself up onto her elbow to study him properly.
"So, what I'm suggesting is for the rest of our stay you stop calling me mum and call me Kelly instead."
Her son looked puzzled, "Why?"
"Because if you want, I'll be your porn star look-a-like girlfriend for the week." She giggled sexily.
"Fucking hell mum... I mean Kelly. Are you sure?" Rob sat up and looked straight at her.
His mother sat fully-up in the bed next to him, her breasts slightly flushed from their recent coupling, "Yes I'm sure baby. I'll do whatever you want me to do. Just like that Mandy what's her name you like. If that's what you want that is?"
"Seriously? You'd do anything?" he asked again.
Kelly grazed his mouth with hers her lips gently brushing his at first and then launched into a long deep tongue probing kiss.
"Absolutely anything for you." She whispered as they broke apart.
"So, if Mandy does it, you'd do it?" her son asked her pointedly.
"Yes, if she's done it, I'll do it for you."
"Even a..." he stopped obviously reluctant to say what was on his mind.
"Even a what?" his mother enquired smiling, curious about what was on his mind, "If you don't tell me I can't say."
Rob turned scarlet, "Err... I... umm... a."
"A what?"
He stared at the floor, his face crimson, "A gangbang!"
She bit her lower lip nervously and hesitated for a second before answering, "Yes baby, even a gangbang. If you want your porn star girlfriend gangbanged then that's what you'll get."
"Shit mum... ooops Kelly, you really mean it." Rob laughed.
"Yes, I mean it. But first we get showered and dressed then we can talk properly over breakfast. Agreed?"
"Yeah agreed..." he nodded and grinned, "... Kelly!"
Slipping out of bed she stood by the bed, unconcerned about being naked, and held out her hand to her son, "I need my back washing. You coming?"
Almost instantly Rob leapt up, his cock already hardening at the thought of showering with his mother. "I'll do yours if you do mine?"
Kelly glanced down and grinned before leading him into the bathroom only releasing his hand to turn on the taps. Stepping under the steady stream of warm water her mind went over the events of last night and earlier that morning, had she really encouraged her eighteen-year-old son to fuck her, not just the once but twice.
Not only that she had also offered to pose as his porn star girlfriend for the rest of the week and do whatever he wanted.
Lost in her reflections she didn't notice Rob slip in behind her.
"You don't mind, do you?" he grinned, his hands sliding around his mother to cup both of her small firm tits while he rolled the sensitive buds with his fingers.
"Oh honey, be my guest!" she replied with a giggle leaning back against him, "I'm your girlfriend now, remember."
The things his hands were doing and the sensations he was creating in her body quickly had her moaning softly as she squirmed, rubbing her cute round arse back into his crotch. Her nipples were throbbing while the dark areola surrounding them had puckered tightly and Kelly could feel her arousal growing rapidly again.
Rob obviously knew the effect his fingers were having on his mother and soon turned her around, guiding her onto her knees before him and feeding her his cock.
"Mmmmm... Nnngghhhmmm... Uuummmmm!" bobbing her head as the water cascaded over her Kelly took him in her mouth and started to suck greedily on his hard shaft. eager to please him.
With his erection covered in her saliva and her wet hair plastered to her face she stretched her jaws apart and endeavoured to take him as deep as she could.
"Ngghhmmmmm.... Guuurrgggggggg.... Gllluuckkkkkkk!" spluttering and choking she looked up at him, the tip of his cock buried down her throat.
"Oh fuck... fuck.... Kelly... Oh god!" Standing over her, water running down his muscular frame, he gasped in disbelief as she deep throated him.
Desperate for breath she eventually pulled her mouth off of his manhood and looked expectantly up at him, waiting for his guidance.
"On your feet." Rob instructed her and Kelly quickly obeyed, letting him spin her around so she faced the tiled wall, her back to him.
She barely had time to part her legs before her son drove up into her from behind, his hard shaft splitting her pussy wide open and lifting her completely off her feet.
"Oh fuck... yessssssssssssssss... oh Rob... fuck me!" she gasped when his rock-hard length filled her dripping cunt.
Her fingers were spread out against the wet tiles while she balanced, impaled on his cock, her feet dangling several inches off the floor.
Not holding back, Rob hammered his prick into his mother's cunt, holding her by her waist and literally pumping her slim frame up and down on his shaft.
"Unhh... aaahhh... unnghhh... fuck, oh fuck." Kelly grunted, every time his full length speared her eager love hole, her puffy labia gripping around his thick girth to cushion every stroke.
With her hands splayed on the tiles she pushed back against him, giving her son purchase to increase his tempo, his hips slapping her arse loudly each time he drove his cock into her. Beneath her, her perky breasts jiggled with the force of his urgent thrusting, while her wet blonde mane hung down around her shoulders.
