"Watching anything good, sis?"
I walked into the living room of our house and saw one of the twins on the settee with the remote control in her hand.
"Not now, Keith. I'm watching my show."
I looked at the screen and saw that the eighteen year old was riveted to the stupid game show Tipping Point.
"What, this? It's a load of crap."
I plonked myself down beside her and budged up.
"It is not a load of crap. The questions are really hard."
"London by the Sea is a nickname for which resort?"
The host of the show asked the question and waited for the three contestants to answer.
"See?"
"The answer is Brighton."
My sister gave me a dirty look and huffed.
I looked to my left and peered down down at her perky and perfectly rounded breasts that thrust out the front of her Taylor Swift tee shirt. I couldn't resist reaching out to give her right tit a quick squeeze.
"Not now, Keith. I'm not in the mood."
"Where's your sister?"
"Cindy is out shopping with Suki. We're not talking."
"Oh? Now what?"
"She's been wearing my knickers without asking. So I gave her a slap."
"Shame."
It had been a few days since the girls and I had shagged together with their young friend Suki. I put my hand back on her tit, loving how warm her skin was under the light top. I could clearly make out the pliant flesh of her boob, and I fancied her nipples were hardening due to my touch. My dick shifted in my pants and I wanted nothing more than to give her one right there and then. My current love life was nonexistent, and both my living sisters had taken pity on me and given up their nubile bodies for my pleasure. Bless! Thank god they were both on the pill.
I pinched and rolled her right nipple between thumb and forefinger and she surprised me by brushing me away.
"Keith! No!"
"Which singer has the name mother monster."
"Lady Gaga," I blurted.
"For fuck sake! You're ruining this for me. I knew that! Fuck off!"
"Mindy."
"Fuck...off!"
"Suit yourself."
I gave up and half walked, half limped out of the room, adjusting my boner as I went. I flopped on my bed and contemplated calling my old friend Ray. He always had a little black book of tasty little birds who were up for anything. l must have dropped off when the door opened and my sister stepped in.
"Sis?" I mumbled as she tore her shirt off and dragged her undies down to her feet.
"I am so fucking gagging for a bit of the other, bro. Get me?"
"Oh? I thought you weren't in the mood?"
"Who, me? Nah!" She said and tossed her knickers at me as she laughed.
I rubbed my eyes and stared at the slim blonde's bared breasts with the erect nipples like two ripe berries. She leapt onto the bed and drew my jeans down. Both the twins were quite athletic, with nicely toned figures. Her bald cunt came into my lustful gaze and my cock shot straight up. Shaven and smooth, her pinkish inner lips peaked out in invitation. She clamped her slender thighs to mine as she gripped my solid shaft and began to wank me off.
"What about your sister? I thought you did everything together."
"We're not talking."
"Oh, that's right."
I looked into her pretty face, still with that air of innocence I always envisaged when I was abroad in the Army for two years. I held onto her thighs and slid my rough hands up her silky smooth skin to her hips.
Once my cock had reached its optimum hardness, she giggled and rolled over onto her back.
"Lick my pussy for me."
She parted her thighs, and I leaned in close, inhaling that special aroma that came from her juicy muff. I had no qualms in going down on my own sibling. We shared a love that knew no bounds. I just had to taste her. I pushed my tongue past her outer folds and delved inside her honey pot, letting her moisture gather on my lips. She tilted her head back and arched her spine as I teased the entrance to her pussy, lapping at her like a frisky puppy.
She moaned and inhaled deeply when I found her clit and made tantalising circles around it, intended to drive her nuts.
"Keith! You do that so well."
I mumbled a thank you as I dribbled spit into her quim and stabbed at her hard little button.
She gasped louder, her hips trembling and fidgeting against my ears. What had started as a simple bet between competitive sisters had become so much more.
I snorted through my nostrils as I reared back and fisted my aching dick. I bent the young girl's legs backwards and up, then I wasted no more time and wedged my bell end in her wet snatch. She squeezed my buttocks as I pushed up with my hips. I paused for just a second, and then drove in to the hilt.
"Puppeeeee!" She screamed as I filled her up and I made a few noises myself as my balls pressed against her upturned bum.
"Fuck me, puppy!"
Her childhood name for me sounded sweet to my ears as I placed her feet to either side of her head and fucked her silly. Her pussy was hot and tight, and her silken tunnel sucked my cock in all the way. Every inward thrust brought forth soft whimpers of pleasure from her ruby lips.
Her hips started to push back against me and we rocked and contorted on the bed in our incestuous rut. Despite, or because of our illicit tryst, we both felt alive and free from any limitations in our minds. The feel of her tight pussy wrapped around my length was fantastic. The way she sucked and squeezed my cock with her cunt belied her lack of years.
"Oh, bollocks!"
My mobile phone rang and I cursed as I pulled out of my pouting sibling. I stared down at her and focused on her heaving tits as she rubbed her thighs together.
"It's Ray. I should take this."
She shrugged as I left the bedroom and made my way to the bathroom where the signal was better. After a quick chat I hurried back only to find my sister had gone.
"Fuck!"
I padded barefoot to the living room without a stitch on to find her back in her tee shirt and knickers watching TV.
"Mindy?"
"Keith? Why are you naked? Look, I told you I wasn't in the mood. Put it away and leave me alone."
"What? But we..."
I sat next to her as she made a face as she tried to concentrate on The Chase. I idly choked my chicken and tried to raise her top from her desirable breasts. I loved the way her pert tits lifted and then kept their firm shape once her shirt was off over her head.
"I'm trying to watch this."
"Just touch it. Please?"
Without looking, Mindy took my throbbing shaft in her tiny fist and stroked me as the voice of Bradly Walsh boomed out of the box.
"Such a gentle touch." I sighed.
"Shush."
After a couple of minutes, I saw Mindy look out of the corner of her eye at my upright pole.
"Okay. I'll just suck it a bit."
"Sounds good."
Mindy didn't need much encouragement as I watched her wetted lips part and slide over the flared head of my cock. My head tipped back as her thick drool bathed my knob. The fact that it was from the mouth of my younger sister made it all the more sublime. She slobbered and hummed on my helmet for a bit and then she drove down hard, taking more of my cock in her mouth. Her fair hair fanned out in my lap as she bobbed up and down faster, letting the tip of my prick hit the back of her throat.
Mindy's phone rang, the Taylor Swift song You Belong With Me, trilling out as her chosen ring tone.
"Spit! I have to take this."
With that she bounced out of the room leaving me with my dick belly slapping me in frustration.
I took a quick shower and resigned myself to another session with online porn. When I entered my room I was stunned to see my sister naked on my bed with a vibrator stuffed up her cunt.