Stay for dinner

We graciously accepted their invitation, and Kirsty winked at me as we did so. It wasn't just their food that we were hoping to sample that evening.

I helped Amy set the table while Kirsty assisted Max in the kitchen and the kids packed up the last of their things. Max had quite a portfolio of quick meals he could serve up, and it wasn't long before it was on the table. Kirsty shook her head at me when nobody else was looking, indicating she hasn't been able to slip any of our magic pills into the food. But all was not yet lost.

Amy and I had put some drinks on a sideboard and a jug of water on the table. I made sure to sit near the drinks, and grabbed the water jug as we sat down.

"Can I offer anyone a drink?" I asked. James asked for apple juice, and slipping a blue pill into his glass as I poured was straightforward. I watched carefully, fearful that the pill would just sit there in the glass for all to see, but in a flurry of tiny bubbles it dissolved almost instantly. "There you are, son," I said as I passed him his drink. It was with a bit more confidence, but equal discretion, that I managed to slip the appropriate pill into each drink as I handed them out.

When Max prepared a quick meal, it was usually delicious and quick to eat too, and so it was with this one. As we finished, Max seemed keen to offer us some pudding.

"We have some ice cream in the freezer," he said, eagerly. "Let me go and let it out," and he was gone.

"Did he just say 'let it out' or 'get it out'?" giggled Lucy. Almost as if to answer her question, we heard the answer: from the kitchen, the unmistakable trumpeting of a loud fart. James and Lucy collapsed into a fit of giggles, and it was hard to resist joining in.

"Do excuse my husband," pleaded Amy in a prim voice, but she had a cheeky, knowing smirk on her face. Max re-entered the room, carrying a tub of ice-cream. He was holding it fairly low down, and I knew instantly that he was trying to hide his raging erection. Looking around the table, everyone had their hands below the table surface - me included, nursing my growing erection to stop my dick getting caught uncomfortably in my underpants.

Max dished out the ice-cream and our hands appeared above the table for just long enough to eat it. There was quite a bit of uncomfortable bottom-shuffling going on, as Kirsty and I looked at each other knowingly. I looked over at my teenage daughter, and there was no mistaking that the crop-top she was wearing was looking a bit tighter on her, her perky little tits looking more perky and less little. Amy was sitting immediately to my right and wearing a plain, dark green T-shirt; stealing a quick look at her bosom, there was also a definite size increase going on there. I glanced at her face, and saw a somewhat confused expression on it, and then a raised eyebrow as an idea struck her. She raised a hand to her mouth and pretended to cough, but there was no disguising the noise that came from her arse as she did so; nor the smell that followed it. Nevertheless she seemed to get away with it, and I saw a slight look of relief on Lucy's face. She also raised a hand to her mouth and pretended to cough, farting loudly at the same time.

James looked at Amy with a big smile on his face, then at Lucy. "No need to disguise it, we're among friends, right?" he said, proudly lifting an arse-cheek and letting rip. There was relieved laughter around the table as the rest of us allowed our flatulence to flow freely. Kirsty took the opportunity to move her chair slightly closer to Max's, and I could tell from the movement of her arm and the slightly bewildered expression on his face that she was gently stroking his cock and he didn't know how to react.

Amy's t-shirt now looked like a crop-top, as her boobs had grown so big that they were lifting the bottom of the garment up away from her abdomen. Lucy's crop-top, which was figure-hugging before the meal, could no longer take the strain, though. I watched as the fabric stretched across my daughter's breasts finally gave way, ripping at the seams and falling down. Her tits had already outgrown her bra and pushed it up, so it now rested feebly atop her magnificent, newly naked breasts. She gasped and tried to cover them up with her arms. As her arms brushed her nipples, she gasped slightly. Instead of covering her boobs with one arm, she instead placed one hand over each areola, moistening her lips with her tongue and rubbing her nipples ever so slightly at first.

Everyone's attention was on Lucy, and she seemed oblivious to the rest of us as she continued to massage her breasts. She let out a little sigh, then allowed one hand to move away from its task and down under the table once more. She sighed again as she began absent-mindedly rubbing her pussy. Next to me, Amy had subtly unclasped and removed her own bra and I noticed it on the floor next to her chair. Her right hand was buried between her legs, her left resting on the table between us. I silently undid my trousers and unleashed my hard cock, and gently lifted Amy's hand and guided it towards my hard member. She gasped, looking across the table at her husband, Max's attention was firmly on Lucy, his hands gripping the table, his body moving rhythmically. I realised that Kirsty had disappeared from view: she was under the table, blowing my best friend.

"Where's Kirsty?" whispered Amy to me.

"Take a look under the table," I replied. Amy bent down to look, and gasped at what she saw. I knelt down with her, looking across at the sight of my wife now expertly working on a hard dick, her massive tits juggling in front of her as she did so. Amy was transfixed, on her hands and knees. I tooku the opportunity to move behind her. I slipped one hand between her legs and rubbed gently, and felt her pushing back against my hand. She was wearing tight denim shorts, and had already undone the front in order to rub her pussy earlier. I pulled the shorts down, revealing and almost transparent pair of knickers which I also pulled away from her gorgeous bubble butt, her wet pussy gleaming beneath it. Holding on to her arse-cheeks, I allowed my cock to gently probe her cunt-lips, and slid gradually inside.

Amy groaned in bliss as she felt my cock enter her. "Oh, it's so big!" she exclaimed, and as she did so, Max, James and Lucy all looked over at us. Max's jaw dropped as he realised one of his best friends was now fucking his wife in front of him, and that my own wife was busy working on his own cock. I nodded and smiled at him.

"Hey, Max," I said, thrusting into Amy a few times. I reached forwards and grabbed her by the tits, pulling her up, being careful that she didn't hit her head on the table. Now that Amy and Max could see one another's faces, I pumped my hips again, ecstatic sighs coming from Amy's mouth with each thrust. "Your wife has a lovely snatch," I added. The astonished Max just nodded silently.

"That looks like a fun game," said James, standing. He undid his own trousers and slid them and his pants down to reveal his own monster cock. "Can I play?"

"The adults are busy doing adult things," I replied. "Maybe you should play with your sister." James looked hungrily at Lucy's big tits, and she stared longingly at her brother's dick. Then I heard Kirsty's muffled voice and a wet pop as she released Max's dong from her mouth. She emerged from under the table, her giant tits in Max's face.

"Max, you've always been good playing games with our children," she said to him. "Maybe you'd like to play with them now!" He hesitated.

"That's right, Max," I encouraged. "Just look at Lucy's succulent young tits, all grown and ready for you to play with. And if I can make Amy make noises like this," I added, thrusting into his wife again, harder this time, to squeals of delight, "just think how she might sound when you have your manly way with her with your new giant cock, and add James's fine specimen into the mix too!"

Max stood, and I was able to see his giant dick standing tall as he moved over to my children. Tentatively at first, he bent towards Lucy's chest and kissed a nipple. Instinctively she cradled his head, pulling her deeper into her giant boob before he pulled away. Max usually liked being in charge of most situations, and that instinct took over now.

"Right, Lucy, James, come here," he ordered. He moved over to the sofa and lay down on it, his cock standing tall like a flag pole. He instructed my daughter to mount him. Kirsty wandered over to help as Lucy removed her underwear and nervously straddled my best friend, positioning herself over his eager, throbbing dick. He gazed up at my daughter's oversized teenaged breasts as my wife cupped Lucy's arse, guiding her pussy gently down. I watched avidly, gently humping Amy as her husband's bell end slowly parted my daughter's pussy lips. It was clear his cock then met some resistance, and Kirsty's hands moved gently to Lucy's shoulders.

"So tight," sighed Max. "But not just tight..."

Kirsty kissed Lucy full on the lips while keeping up the gentle pressure on her shoulders, until a slight jolt and a trickle of blood running down Max's cock indicated her hymen was breached, and he could now continue to penetrate my daughter's virgin pussy. As Lucy gradually impaled herself on his dick, Kirsty moved slowly away and Max instructed James to move in behind his sister. Lucy leaned forwards, her breasts hanging beautifully in front of my best friend's face, her arse checks opening in front of her brother's rigid penis. Eagerly, James took hold of his sister's firm buttocks and positioned his dick between them.

"Yes, James, go on, son" I encouraged as he prepared to enter her arse.

"My first sex, and it's my sister's arse," he observed.

"My first sex and it's double penetration with my brother and my mum and Dad's best friend!" replied Lucy. "Ow! Oh, oh, gently James!" she pleaded as her arse was filled by her brother's massive rod.

"Mmmmm, who's a big boy, then?" smiled Max, as he could clearly feel James's dick entering Amy's arse while his own impaled her pussy. "Now, Jim-boy, ignore her protests and give your sister what-for. Nice and hard, now." Sure enough, James started pounding his sister's arse, causing her tits to jiggle in front of Max and her pussy to slide up and down his own cock. "Ah! Ah! Oh yes!" Soon the three of them were panting, grunting and squealing in unison as James eagerly fucked his sister's anus.

My attention was drawn away from the spectacle of one of my best friends fucking both my children at the same time, to my own task at hand, by a gust of foul, warm wind against my abdomen. I smiled down at the sight of Amy's anus vibrating between her perfect arse checks, with my long, hard cock stretching her pussy lips just below it. I reached forward to feel her tremendous tits, stretching her cotton t-shirt almost to breaking point, and began to fuck her faster.

Kirsty's blowjob had almost taken Max to the point of climax, and the feeling of his enlarged cock inside my daughter's virgin fanny took him over the edge. Meanwhile my son's teenage eagerness and inexperience as he screwed his sister's butt meant he was also cumming inside her within a few minutes. The heaving mass on the sofa came together in a thunderous climax, and I thrust harder and faster into Amy's welcoming pussy. Her cunt tightened around my cock as she reached her own climax, and I continued to hold on to her voluptuous breasts as I shagged her, coming inside her with a satisfied grunt.