He simply smiled. Nothing was said for a couple of minutes. I broke the silence.

"What do you mean she knows about us."

"She knows we fancy each other."

I fell into his trap. "How does she know?"

He smiled. "I told her."

"Told her what?"

"That I fancy you and you do me."

"Why?"

"Because it's true."

"It isn't?"

"It is, I do fancy you very, very much."

"Really?" I rather stupidly asked.

"Absolutely" he said again putting his hand on my shoulder. "And you do me don't you?"

I didn't reply but simply looked at him.

"You do don't you?"

"But you're my mum's boy-friend" I repeated for the umpteenth time.

"But if I wasn't?"

I sipped the vodka as I carefully considered my answer.

"It's purely hypothetical because you are."

"So hypothetically if I wasn't?"

"Well maybe."

"'cos you like older guys don't you?"

"How do you know er, what do you mean why do you say that?

"Amanda told me."

"Mum told you that?"

"Yes."

"Why does she say that?"

"Wasn't there some party here when you brought an older guy in his forties and a big-titted student."

"Yes, but they were together."

"Amanda didn't believe that for one moment and she knows full well that you slept with him that night."

"Jesus Christ do you and mum do nothing but talk about my sex life?"

"I think you know full well Sammi what else we do, don't you?"

I was a bit pissed by then through having had too much vodka. Not pissed in the way that I would slur my words or fall over, but such that I gained confidence and somewhat lost my inhibitions.

"Yes I hear that most nights."

"Oooo really?"

"Yes you're both bloody noisy."

"Are you Sammi?"

"What?"

"Noisy."

"Huh?"

"Are you noisy when you have sex."

"Mind your own business."

He laughed. "It'll be my business soon I expect."

"What do you mean?"

"Well when we have sex" he said laughing as we heard mum coming downstairs.

She came into the large lounge and we both turned and looked at her. She was wearing one of her numerous dressing gowns. This one was pale pink silk, ankle length and was held together merely by a tie round her waist. As she walked across the large lounge it billowed out beneath her waist flashing her shapely legs and gaped at the top exposing some of her tits. She looked and she knew it, very sexy.

"So what have you two been up to while the cat's been away?" She asked pouring herself a glass of white wine.

"Oh discussing the EU crisis, the Afghan war and the problems with Iran" Mark said looking at me and raising his eyebrows as he added. "Weren't we Sam?"

"Yeah something like that" I said looking at mum as she bent over to return the bottle to the fridge. Glancing over her shoulder she caught me staring at the front of her dressing gown that had gaped so her nipples were almost on view. I gulped, she smiled.

I had sat down on one of the chairs and was sipping my vodka. The ridiculously short, yet highly fashionable and very clubby 'plastic' dress with a zip all the way down the front had ridden up my legs. That meant that from some angles my black thong could be seen and mum was at one of those angles.

"Er Samantharrrr" she said as usual emphasising the ending of my name.

I looked up and she nodded her head at my legs.

"Oh right sorry" I said sitting up straighter and wiggling the skirt down a bit.

Over mum's shoulder I saw Mark smiling and again raising his eyebrows at me.

"Spoilsport Mands" he said infuriatingly using the nickname that other than him had only ever been used by my dad.

"Now now" mum said turning and smiling at her lover.

"Well I'm off to bed" I said getting up.

"We'll be up soon luv" mum said as I pecked her on the cheek.

"Don't make too much noise then I need my beauty sleep."

"Oh we'll be careful" Mark said as I walked past him.

"Remember what I said" he whispered.

I went to my bedroom which was in a small suite, a granny flat really, that dad had had built when the pool, new garage and gym were put in a few years ago. I undressed, took my make up off and slipped into the thigh-length, yellow tee shirt dress that I sometimes wear in bed. Although I have my own bathroom I tend to wear it when anyone is in the house other than mum and me, then I always sleep naked.

I put the TV on low volume, turned the lights off and slipped into bed. I flicked round the channels trying to find something worthwhile to watch, but as usual late at night it was hopeless. I gave up and was about to switch it off when there was a tap at the door. It opened and Mark came in.

"What you doing?" I asked gulping when I saw that he was wrapped in a dark blue towel.

"Thought I would come and say goodnight" he went on smiling and walking across to my bed. I pulled the duvet up round my chin.

"Bugger off" I said quietly not wanting mum to hear me.

He sat on edge of the bed.

"Don't."

"Why not?"

"You know why?"

"I don't."

"Look for fuck's sake, you're accounted for by my mum, she's just down the corridor and you are in my room dressed in a fucking towel."

"And nothing else" he muttered adding. "So what?"

"What would she think if she caught us?"

"She knows I'm here."

"What?"

"She knows. I told you that I had told her we fancy each other."

"I don't fancy you, now fuck off" I said getting annoyed.

"Now, now Sammi" he said putting his hand on my shoulder through the duvet.

"Get off" I said moving across the double bed. "She'll hear."

"I told she knows I'm here."

"I don't believe you?"

"OK" he said getting up. I saw that under the towel it looked as if he had an erection. That excited me.

He walked across the room and out through the door. Nothing happened for several minutes so I thought he might have given up, but I was wrong for the door opened and he came through it. I was just about to tell him to fuck off again when mum walked in behind him.

"Hello darling" she said smiling as she walked across the room the skirt of her robe billowing so that I saw her legs almost up to panty level. "I brought you a drink."

She handed me a glass that I assumed contained vodka and water. In her other hand she had a glass of red wine.

"Hi" I replied feeling very confused. "Why are you here mum?" I asked as she sat on one side of the bed and Mark perched on the end.

"We need to talk" she said reaching out and brushing a long lock of my blonde hair that had tumbled down my forehead. To do that she had to lean forward and that caused the lapels of her robe to slip open some way exposing most of her breasts. She didn't seem bothered by it or really to be aware of how much she was showing. When she straightened up she did nothing about the front of her robe.

"What about?"

"Us, you, Mark."

"What do you mean?"

"He tells me you er, um fancy each other."

"Does he?"

"Yes and I understand that. My handsome boy-friend and my beautiful daughter" she said running her fingers through my hair. "You make a wonderful couple."

"So do you and Mark" I retorted.

"Then we all do don't we darling?"

"Yes" I whispered feeling the atmosphere thickening by the second.

"And I have never denied you anything have I?"

I almost said 'what about those roller skates when I was thirteen and when I wanted my ears pierced' but I resisted trying to be a smartarse and instead croaked. "No mum."

"And I won't now."

"What?"

"Stop you."

"Stop me what?"

"Mark come here" she said in the rather authoritarian way she often talked to me, but then I'm her daughter not her younger lover.

He moved and stood beside her. His erection was very obvious under the tight towel.

"Do you want to make love to my daughter Mark?"

"Yes Amanda if you are ok with that."

"And you Sammi?" She said quietly running her hand across my forehead.

"I don't know mum."

This was part terrible and part the most exciting thing that had ever happened to me. It was almost incredulous that my mother was sitting beside me with most of her tits on show as she offered me to her boy-friend. Nothing was said for a moment or two.

"Let me help you make your mind up darling."

"How?"

"Take your towel off Mark."

"Mum no."

"Shush baby."

"What are you doing mum?"

"I know exactly what I am doing Sammi and it's for all of us" she said although I hardly heard her for my attention was so focused on Mark.

With a slight smile on his face and his gaze locked on mine he slid his fingers into the towel at his waist. It was as if everything; mum's hands stroking my hair, me sitting up, the bedclothes falling away from my tee shirt covered body and Mark's fingers was happening in slow motion. But then the towel eventually came away from him and tumbled to the floor.

"Oh my god" I sighed as I felt mum's fingers dig into my shoulder.

"He is rather lovely isn't he Sammi?" She cooed as we both looked at Mark who stood looking at us not seeming to be the least self-conscious.

He had a great body. A nicely hairy chest, well defied muscles, no excess flesh, a fantastic six pack and long slender legs. But of course dominating everything else was his cock. He was big. Certainly as big as anything I'd ever had, although one of the photographers to whom I'd provided extras when I was modelling was longer and thicker, but I had only masturbated him.

My heart pounded even more when it struck me that soon this longish, very thick cock would be buried deep inside me. Until that moment I had felt nervous and reticent and hadn't really believed anything would happen. But now with my mum's arm round me, my shoulder pressing into her gorgeous breasts and her boy-friend standing before us naked and rampantly erect, I not only knew something would happen, but also wanted it to happen. Yes I realised I wanted Mark, my mother's lover to fuck me.