This is a work of fiction, written for enjoyment and amusement; hopefully yours as well as mine. Comment and constructive criticism invited.
*****
"It's your turn now, Kathy," I said, smiling at my nephew's horny girlfriend.
"Hey, I need rest," said Matt plaintively.
"No, you need encouragement. Lie back." I wriggled out from his encircling arm and knelt beside him. "Kathy, you there," I indicated. She got it straight away and grinned and the two of us extended our tongues and licked at opposite sides of Matt's cock. Kathy got a thoughtful look on her face and took another lick, then to my surprise put her finger into her cunt and then brought it to her lips and licked. She smiled at me.
"We taste different," she said. "On Matt's prick I can taste him and you. I've tasted Matt before, so I know what he tastes like, so the new flavour has to be you."
"I guess it does," I said slowly. I put my finger in my own cunt and then licked it. I could taste Matt and myself. "May I?" I said to Kathy, reaching for her hand.
"Just a moment," she said, "I've licked it clean, I'll get fresh." She put her finger back into her pussy then extended it to me. "Here," she said.
I licked her finger. Similar, yes, but different. "You taste good," I said.
"So do you," said Kathy. She glanced at Matt whose face was alive with curiosity. He laughed.
"You should have asked me," he said, grinning, "I knew you tasted different."
"I guess we should, " I said. "Come on, Kathy, back to work."
We established a rhythm. We ran our tongues simultaneously up Matt's cock, then I would take the whole thing in my mouth, then release it. Then we'd do the same again except that this time it was Kathy who'd do the swallowing. It wasn't long before Matt's cock was hard again. I sat back.
"Your turn, honey," I said to Kathy. "Do you mind if I just watch, this time?"
"I don't mind at all," said Kathy, "It just makes me hornier!" She turned to Matt. "You ready, sweetheart?"
"Sure am," said Matt. "Just one thing."
"Yes?" said Kathy.
"Unless Ellen has got some rubbers, I'll have to go and find my jeans. I'm not planning to make you pregnant."
"In my purse, Matt, there should be a couple." I leered at the others. "Never know when you might need them." I grabbed my purse from the bedside table and rummaged for a moment, before passing the little foil packet to Matt. He passed it to Kathy, who smiled, tore open the packet and expertly unrolled the rubber onto Matt's rampant prick.
"You've done that before," I said, winking at her.
"A few times," nodded Kathy. She lay back and spread her legs. "Come on, Matt, fuck me while your aunt watches us."
Matt laughed and knelt between Kathy's legs. I was excited, I'd never actually watched another couple fuck before. OK, I'd been out, particularly back in my high school day, where a girl friend and I had ended up fucking our dates. But I'd never been in a position to watch. It was usually dark and modesty and caution dictated discretion. Now it was broad daylight and the participants had no objection to me watching. I was loving this!
I studied Kathy carefully. Her labia were flushed and engorged, moisture visible in the crack of her ass. She saw me studying her, grinned and spread her legs even further. I smiled in acknowledgement and watched fascinated as Matt put his prick to the entrance to Kathy's pussy. He pushed gently and I watched breathless as her lower lips spread to accept the blunt head of his weapon, the lips turning in slightly as he pushed gently into her, then out as he moved to spread her lubrication.
It was no time at all until all of Matt's prick was in her and his ass moved rhythmically as he fucked her. Kathy's legs came up around Matt's waist and she hooked her heels together behind his back as he moved. I glanced at her face. Her eyes were closed and her breathing was deep. Suddenly, I needed more. I reached under the pillow and groped for my dildo. I pulled it out and sat up, my feet together, my knees falling apart to reveal my cunt. Kathy felt my movement and opened her eyes. She grinned when I brandished the dildo and watched open-mouthed as I slid it carefully and sensuously into my soaking cunt.
I took a deep breath and sat for a moment just enjoying the feeling of being full, then began to stroke the plastic prick in and out. Kathy was still watching me carefully and her breathing was quickening as Matt fucked her steadily. I caught his eye and he grinned, never missing a beat in his rhythm. I matched my rhythm to his, my dildo matching his prick, stroke for stroke.
Kathy's eyes were closed again and her breathing was ragged. I thought she couldn't be far off coming and I began to stimulate my clitoris as I fucked myself steadily with the dildo. My own breathing was beginning to get ragged too and I could feel those wonderful sensations beginning to build in me. Kathy was panting now and she began to mutter.
"Fuck me, Matt, fuck me. Yes, Matt, fuck me, Matt, I want to feel you come in me, Matt. Fuck me, baby, fuck me hard. Hard, baby, hard!"