I ran my tongue between the lips of her sex, its roughness grating along her valley floor, hot and wanting. I heard her gasp as her clitoris felt my tongue and then again as my fingers pushed inside her, pressing as deep as they could, spare fingers lying across her perineum, pressing at her sphincter, pushing, entering. 

"Yes, Dad, yes," she gasped as I rocked my fingers in and out of her fanny and her arse, feeling the bumps and ridges inside her, a nail scratching at her G-spot, her hips lifting, and her fanny and her sphincter tightening. 

I let my fingers slide out of her, and I stood up, my baby girl lying beneath me, her breasts mesmerising, her fanny lips apart, open, wanting. I threw my discarded polo shirt over my shoulders onto the floor; it was just a distraction. I pushed my underwear down, my dick hard and jutting, wanting, needing to bury itself in her hot flesh. 

She looked up at me, eyes wide, mouth open, lips pursed, her breath panting in anticipation. I dropped quickly above her, breaking my fall with my hands, my dick crashing against her stomach before I steadied myself. I reached down and guided my dick to her hot hole and pressed in quickly. This was lust more than love, and my foreskin rolled back as my dick penetrated her to my balls.

 "Oh fuck, Dad, shit," she gasped as I filled her, her lust equal to mine, her hands gripping my shoulders. "Oh fuck my cunt now," she gasped, such language unheard of from Meg before. 

I settled, lowering myself, my arms crooked at the elbows. I was just above her, my eyes bored into hers, and I flexed my hips, my dick pistoning in and out of her, her face convulsing as I moved inside her. I went fast, pressing deep, moving my hips back and forth, stretching her opening as much as I stretched her fanny. She was gulping in air as she held onto me. 

"Fuck yes, Dad, fuck me, yes." 

In the other chamber, I could still hear the sounds of her brother and my wife, their mother, shagging. The slap of skins colliding, the gasps as a dick pressed in hard, the grunts of exertion. I guessed we had sounded the same, Meg and I. 

As I lie on my back, feeling the effects of the exertions from a few minutes ago, my mind briefly returns to a family afternoon meal a few days earlier that was ruined when all our mobile phones went off due to the emergency alert. "Attack Imminent: Take Shelter." 

We grabbed our phones and rushed to the study, pushed aside the hinged bookshelf, and made our way down to the shelter. I had installed an Atlas double-chambered shelter a few years ago as a precautionary measure, but I also joked that it would serve as a place to store my wine. 

I pulled the bookcase behind us and then closed the blast door, spinning the handle and locking it down. No one could get in. I followed the others down, shutting and locking the mudroom door behind us and then into the main chamber, again shutting the door behind us. We were sealed in, sixty feet below ground, in our double 80x40 shelter. Whatever happened out there wouldn't affect us in here. 

I turned on the scanner, and it locked onto the Emergency Broadcast Service, run by the BBC but not under their name. Things had escalated over the past twenty-four hours. Not content with trying to erase Hamas in Palestine, Israel had attacked Hezbollah in Lebanon. 

This had prompted every Arab nation to fire its weapons at Jerusalem. Israel had responded by nuking Tehran, and then all hell broke loose. Russia and China posturing against the West, India threatening Pakistan with retaliation (retaliation for what no one really knew), America saying, 'Don't you dare, or we will,' and then suddenly the UK was the target for having created Israel in the first place. 

Asians in the streets started rioting, attacking infrastructure, and torching police; the army got involved, and it was just a mess. It was only a matter of time. I thought that rather than take on America, Russia would launch against the UK; we were isolated, an island, and no one would miss us. Attacking us would stop a NATO response, as the next step would be the rest of Europe. We were indeed a target. 

We took our watches off and placed them, our phones and iPads in an earthed metal box. Everything electrical was grounded and turned off. We sat with just battery-powered lights, worrying about what would happen. There was a sort of thump, a percussion perhaps. No sound, just the feeling. 

"What was that?" Miles, my son, asked, "A nuke?" 

"Could be," I answered. "I just hope not." 

"I'm scared," Meg said. 

"We are safe here," Mary said, trying to reassure the twins. 

"But my friends are not, Mum; they don't have a bomb shelter to hide in." 

"No, baby, some of them don't, and there is nothing we can do for them, is there, Mike?" she said, addressing me. 

"No. I never expected us to need this, but we have it, and we are safe. "There is nothing we can do for everyone; let's just lie on our beds and give it a while, and then we will see if there is any news." 

Meg and Miles went into the other chamber; they each had a room there, and Mary and I went down to the end of this chamber to our bedroom. It was warm down here in the chamber, a steady twenty degrees. I stripped off my top and shorts and just lay on the bed in my boxers. Mary likewise stripped to her underwear, and we lay together, cuddling whilst who knew what happened sixty feet up in the outside world. As always, when I embraced Mary, my dick hardened and pressed into her. 

"Mike, really?" she said. 

"I can't help it, baby," I answered. Truly, I couldn't; she had always had this effect on me. Whenever we cuddle, I go hard. She rolled me onto my back and lay above me; she fisted my dick through the hole in my boxers, eased her knickers to one side, and mounted me. 

Oh God, that felt so good. Mary rocked back and forth, her fanny sliding along my dick, the elastic of her knickers cutting into it as she moved. I held her. 

"I need to taste you," I said. 

"No, just this, the kids." 

"The kids are next door; they won't hear anything. I need your taste." 

I pushed her back and then pulled her knickers off her fanny, which is a glorious sight. Shaved for many years, just a clean slate with a wonderful crease going down to between her legs. I dipped forward, and my tongue slipped between her lips and was immediately embraced by her inner folds; oh, the sensation was mind-blowing. Mary opened her legs wider, and her fanny unfurled; the deep red of the valley lay before, surrounded by the grey folds of her lips. I ran my tongue up and down, dipping at her opening, dabbing at her clitoris. 

"Oh shit, Mike," she gasped as my tongue waltzed along her valley and my fingers ran circles around her opening before pressing into the heat of her fanny. 

"Oh Jesus," she gasped as my fingers crooked and straightened inside her, "fuck me now; I need you back in me now." 

Never one to disappoint a lady, her taste on my tongue, I moved up, grabbing my dick and pushing it at her opening, penetrating again, deep inside my wife, her fanny clenching and gripping, almost sucking me in. 

"Ahhh," she sighed as I settled above her, my weight on my knees and elbows, and I began to move. Not fast, and not slow, just a steady shag, pressing deeply in, almost exiting. The feeling on my dick was intense, the almost gossamer touch at her exit contrasting the hard grip from her fanny as I was fully in. 

As I moved, the sensations ran along my dick, my balls tightened, and my buttocks clenched, and I had a little crinkle feeling deep inside at my root. I was close. 

"I am close, baby," I gasped, and my speed increased. I couldn't help it, and then I pushed in hard, and my back curved, and I ejaculated spurt after spurt inside my wife, my gasps loud as I came. Mary squeezed my back with her fingers and sighed as her orgasm rolled through her. 

"Better?" She asked as her chest heaved. 

"Mmm, baby," I answered, slipping out of her and rolling to the side. 

Mary put her knickers back on and passed me my boxers, which I pulled on. Decent once more, we sat on the bed arm in arm, our backs resting on the headboard. 

"What do you suppose is happening?" she asked. 

"Baby, I have as much idea as that can of water over there." 

We sat there for a while, with no watches or anything, so we had little idea of how long; it felt like it was probably an hour. We got up, and still in our underwear, we went into the main family room. We turned on the scanner, but still no stations were operating that we could pick up. 

I went to the emergency escape room and raised the periscope that I had installed. It only went a few inches above ground so as not to attract attention, but there was nothing to see. The sky was red, the house was standing, and there was flickering, perhaps from fires to the east. I retracted it and went back. The twins had joined us. 

"Nothing. The house is okay as far as I can see, but nothing else. The sky is red, but that could be anything. 

"Mum," Meg said, "You're leaking." 

Mary looked questioningly at Meg, who pointed to her crotch. 

"Oh," she said and grabbed a tissue, folded it, and pushed it down inside her knickers. 

"Mum, Dad!" she exclaimed. 

"Oh, for goodness sake, Meg." 

"Well, really, Mum, it's alright for you and Dad, but what about me?" 

"Or me," Miles added. 

Mary looked at me and then said. "It seems to me the world has ended and all the old rules

have gone. Do what you like." 

I was surprised by that statement, but then I realised that sexual tension in this situation could be fatal. Meg looked at Mary, then Miles, and then focused on my crotch. I looked at Mary and shrugged. 

"Well," Mary said, "we are stuck down here for the foreseeable future. There are two males and two females; if we stick to the old rules, someone will kill someone." 

"I don't disagree," I said.

 "Dad," Meg said. 

"Yes, sweetheart," I answered. 

"Come with me," she said and headed to her room. 

I looked at Mary, who simply smiled. This was actually more difficult than you might think.

Parent and child relationships have always been taboo. I was struggling a bit with what might happen next. I followed Meg through to her room and slid the sliding door across. All the doors down here, once you were past the mud room, were sliding; they didn't do much for audible privacy, but gave physical sight privacy. Meg was sitting on her bed. 

"Talk to me, Dad. What is wrong? You didn't seem overly pleased at what Mum said." 

"Baby, I have spent all your life trying to protect you, believing that sex between father and daughter and brother and sister was wrong; I can't just dismiss that." 

"Am I not attractive?" She asked as she pulled her polo shirt off, sitting next to me in just her soft, unwired bra. Her breasts were perky and not really in need of support. 

"Yes, of course you are," I replied, and she was right, my dick was already hardening. 

"Show me. Take your underpants off." 

Oh. Well, I suppose there was no turning back now. I lifted my bum and shuffled my pants down, my dick hard and standing up. Meg stood up, undid her skirt, and pulled it and her knickers down, revealing her fanny to me for the first time. Meg was a mini Mary. She stood in front of me, her legs slightly apart, her smooth fanny at my face height as I sat on her bed. With her hands behind her back, she undid and dropped her bra; her boobs hardly moved. Her nipples were slightly smaller than Mary's, perhaps because she had yet to breastfeed. 

"Well?" she asked. "Am I fuckable or not?" 

"Hell, Meg, of course you are." 

In the background, I could hear the unmistakable sounds of shagging. Miles and Mary were obviously getting into things more quickly than I was. If this had been Mary, I would have known exactly how to proceed, but it wasn't; it was my daughter, and that had mental complications. 

Meg knelt in front of me and took my dick in her mouth. Okay, wow, yes, okay, that worked. I just shut my eyes, and then it didn't matter who was sucking my dick. She pushed my foreskin back with her lips, held it with her hand, and then wrapped her mouth around my dickhead, sucking and then licking. Oh my, that felt good. Her hand held my balls, gently squeezing them to the point of discomfort rather than pain, and then a finger slipped under me and pressed at my sphincter. 

As she pressed, her finger pushed in a little, just a little, and then my body gave way, and her finger entered me in a rush and wiggled inside me. I felt things I had never felt before. "Just wait, Dad," she said, "until Miles shags your arse." 

I had never had anything in my arse until Meg's finger. I wasn't sure how I would react to a dick. When her finger penetrated me, I thrust hard into Meg's mouth and had partially gone down her throat, a very different feeling as I squeezed past the hardness of her throat into her windpipe. She wiggled her finger and then started wanking my cock with her hand, pulling her mouth away. My breath almost stopped, just small gasps in. She pushed my foreskin hard down on my shaft and stopped; her finger pulled out of my arse. I was almost disappointed when the sensation stopped. She pulled back and then stood and stepped over me and lay on the bed.

"My turn now, Dad; make me cream."

 I shook my head to clear my mind and lay on the bed between her legs, and using my fingers, I eased her fanny lips apart, revealing the folds of grey inner waiting for my ministrations. I leaned down and ran my tongue from her fanny to her nubbin, dabbing her urethra on my way and then pressing at her clitoris. She gasped and held her breath. I dabbed more, then sucked her into my mouth, my tongue wiping across her clitoris as my fingers circled her entrance. She was panting as I moved my tongue, and then slowly I pushed two fingers into my girl's fanny with no resistance. I assumed I was not her first.

 As my fingers pressed in, I pushed a third at her sphincter, unrelenting, penetrating her twice. I then started finger shagging her, sliding at the same time in and out of her fanny and her backside. She took a huge deep breath and held herself up off the bed, gasps and eeks coming from her mouth. I started stabbing at her clitoris with my tongue, in sequence with my fingers. She was moaning, gasping, grabbing breaths, and staring down at me as I fingered and mouthed her.

 "Jesus, Dad, Jesus," she gasped, grunting and eeking, and then she rose high in the air. Her fanny spasmed, as did her sphincter, as she cried, laughed, and then she screamed before squirting and collapsing back on the mattress. 

I exited her body and rolled down beside her as her chest heaved, and she gulped in air. She rolled to look at me. "For fuck's sake, Dad, what the hell was that?" 

"What do you mean?" I was worried; had I crossed a line? 

"I have never cum like that, ever. What did you do?" 

"Nothing I don't do to your mother, sweetheart," or every other woman I have been with, I thought but didn't say. 

"No wonder Mum hasn't left you. That was incredible." Well, thanks for the vote of confidence. I am sure there were other reasons, such as my money, the prenup, and all things that help a woman stay loyal to her husband. 

I went to cover her and penetrate her with my dick, but she stopped me. 

"Dad, not for a few minutes. I need to recover." I lay back, my dick waggling in the air, hard, and my balls still full. She had brought me close with her mouth, but not quite to the happy ending I needed. 

I leaned over and kissed her. "It's okay, baby, I will just lie here and finish myself." 

I was no stranger to wanking in front of Mary; she was sometimes too exhausted after her orgasm, and I would wank, sometimes over her breasts, sometimes her fanny. She said she loved to watch. 

I took my dick in my right hand and looked at Meg's face as I began to move. I like to grip my dick near the top and push my foreskin all the way down, revealing my dickhead, and then all the way up, covering my dickhead with my foreskin, and going faster and harder, really straining the small tether that holds my skin to my shaft. I moved fast, faster than Mary does...