After her initial Sex Education lesson with her cousin Sophie and me, and her continued lessons with my girlfriend, Daisy, 16-year-old Red felt confident enough to demonstrate her newfound skills to Sophie. She was eager to showcase how much she had progressed in the last few weeks.

I pulled up outside Sophie's house and collected her to drive to Laurie's house. Laurie, Red's mother, who had initially requested this slightly unconventional schooling for her daughter, wouldn't be home from work for another hour or 2. As we drove the route to the house, I smiled to myself, anticipating Sophie's surprise at Red's advancements. Sophie had no idea of the private lessons and tutoring that Red had received from Daisy and Me since her first lesson with her.

Red answered the door to us with a bright smile; her school uniform hugged her slender frame, fresh from the end of her day. Her red hair hung loosely over her shoulders, and her eyes lit up with longing as she looked at us.

I took her hand and led her up the stairs, and beckoned Sophie to follow us. We slipped into Red's bedroom and closed the door behind us. The atmosphere was thick with anticipation.

I guided Red to sit on the edge of her bed, her skirt riding up slightly. "We're going to show Sophie just how far you have come since your first lesson a few weeks ago." My hand slipped under her skirt, hooking the elastic of her knickers. I slid them down her smooth legs, bringing them to my nose for a quick inhale of her musky scent, before popping them into my pocket, a memento to add to a growing collection. Red parted her thighs, her bare pussy, fully exposed and glistening in anticipation.

Sophie didn't need any prompting. She had been craving her younger cousin's taste ever since their initial encounter. She dropped to her knees between Red's legs. Her hands caressed the soft skin of Red's thighs. "God, Red, I have missed this," Sophie murmured, leaning in to drag her tongue slowly over Red's clit. "You taste sweeter than I remember." A soft moan escaped Red's lips as Sophie's mouth worked expertly, lapping and sucking with precision. Red's hips bucked involuntarily, her fingers clutching at the bedsheets as she squirmed.

I positioned myself at Red's side as she sat on the edge of the bed, unzipping my jeans to free my rock-hard cock, which sprang forward, throbbing and aching, and Red's eyes locked onto it, looking lustfully at it. She wrapped her small hands around the base as she leaned in to take the head of it in her mouth. Her lips sealed around it, and she sucked with practised skill, her tongue tracing the underside of my shaft. The improvement in her technique was obvious. I gasped as I ran my fingers through her hair. "That's it, Red, just like that. You have gotten so good at this!"

The pressure built in my balls, which tightened as her mouth worked me. Sophie, her face buried deep in Red's pussy glanced up at me with a smile. "Don't hold back, Jamie," she urged. "Cum in her mouth."

I nodded, my voice rough. "Keep going, Red. I'm almost there." Sophie redoubled her efforts and flicked Red's clit with her tongue while she plunged two fingers into Red's pussy, curling and pumping them until Red's body tensed and she shuddered in a powerful orgasm. She sucked hard as her climax overcame her, and I erupted with a deep groan. Thick salty cum flooded her mouth, which she swallowed greedily.

Sophie stood up from between Red's soft thighs, grinning with Red's juices on her mouth and chin. I leaned in close to her and whispered in her ear, "I want to taste your asshole, Sophie." She turned, presenting her back to me. With a seductive glance over her shoulder, she bent over the bed, arching her hips invitingly. I tugged her knickers to one side, exposing her tight asshole. Crouching low, I pressed my tongue against it, circling the rim, before I pushed my tongue in. Sophie gasped and pushed back against my face. "Oh fuck! Right there!" Her flavour drove me wild, as I spread her cheeks wide to get full access.

"Come here, Red," I said, beckoning her over. "Slide some fingers into Sophie's pussy, make her feel good." Red obeyed without hesitating, kneeling beside us and easing two fingers into Sophie's soaking wet hole. She pumped them slowly to begin with and then faster as I ate Sophie's ass. Sophie buried her face in the duvet of the bed, her muffled moans and cries filled the room.

My desire for Sophie intensified. "Red, climb onto the bed and get in front of Sophie," I calmly instructed. "Let her feast on your pussy again whilst I take her." Red nodded eagerly with a smile, and scrambled up onto the bed, spreading herself wide and presented herself to Sophie, who dived in without hesitation. She plunged her tongue into Red with hungry laps.

I gripped Sophie's hips and pushed my aching cock against her pussy, and with a slow, deliberate thrust, I slid inside her. "Fuck, Sophie, you are so fucking wet!" I groaned, starting a steady rhythm. My hands ran over the soft curve of her thighs, squeezing the flesh as I drove in and out of her. Each stroke brought out moans from all three of us. Mine from the exquisite feeling of Sophie's cunt gripping me, Sophie's from the deep penetration filling her, and Red's from the expert work of Sophie's mouth bringing her close to another peak.

Unbeknownst to us, Laurie, Red's devoted mother, Sophie's aunt, and my cousin had slipped home early from work. She stood in the hallway, frozen behind the closed bedroom door, the unmistakable sounds from the bedroom clear to her. The slapping of skin, the slurps on genitalia, and the collective gasps and moans paint a vivid picture to her, stirring undeniable arousal.

I quickened my pace on Sophie, as her body tensed beneath me. "You're close, aren't you?" I whispered as my fingers dug into her thighs. She nodded frantically, her face still buried deep inside Red's sweet snatch. With a few more powerful thrusts, Sophie climaxed hard in a shuddering orgasm, which ripped through her in waves. Her cunt spasmed around my cock, which sent me over the edge. "Here it comes!" I said through gritted teeth and unleashed a torrent of cum inside her, coating her insides with seed. As the last pulses surged, I pulled out and spunked the final spurts over Red's exposed pussy, the warm fluid frosting her clit and folds. Sophie immediately went down again and frantically licked up the warm treat. The added stimulation sent Red into a wild orgasm with a high-pitched cry, clamping her thighs around Sophie's face.

We caught our breaths, completely oblivious to what was happening on the other side of the bedroom door. Laurie had sunk to the floor, back against the wall, skirt hiked around her waist. Her fingers work furiously inside her soaked pussy, listening to her daughter's pleasure. Pride swelled in her chest for her girl.

Eventually, we composed ourselves and stepped out of the bedroom to find Laurie dishevelled on the floor. She always dressed to impress at work: a Crisp white blouse that clung to her full breasts; a fitted black pencil skirt, now rumpled and pushed high; sheer black seamed stockings that highlighted her toned legs, and elegant Louboutin heels. Her hand was buried between her legs, plunging in and out of herself as she was on the brink of release.

Without a word, I stepped closer, my semi-hard cock still glistening from Sophie. "Taste Sophie on me, Laurie," I said firmly, guiding my length into her lips, which she eagerly parted with a soft moan, swirling her tongue to savour the taste of Sophie's arousal and my cum. The sensation stirred me back to full erection.

Sophie knelt beside her aunt, her hand joined Laurie's between her legs. She eased Laurie's fingers aside and replaced them with her own. "Red has been such a good girl today," Sophie whispered to Laurie as she pumped her fingers inside her. "She has learned so much, sucking cock like a pro, cumming so hard when I ate her pussy. You are raising a good little slut like us."

The words, combined with the dual stimulation, were too much for Laurie, and her body convulsed; her mouth tightened around my cock as Sophie coaxed the orgasm out of her. Laurie shuddered violently, her juices soaking Sophie's hand.

Once Laurie recovered, we all went downstairs together. In the living room, we settled onto the sofa, ready to recount the explicit details of the session for Laurie's benefit. As we spoke, describing the licks, the thrusts, the shared climaxes, Red knelt between my legs, her small mouth taking my still throbbing cock. She bobbed her head with expert precision, her tongue tracing the veins and swirling around the head, demonstrating the oral skills she had perfected during lessons. "See how she takes it all now?" I said to Laurie as I stroked Red's hair. "No gagging anymore, just enthusiasm."

Laurie watched with a smile, her hand caressing Red's shoulder. "I am so proud of you, sweetheart," she murmured to her daughter.

When the tale of the session concluded, I leaned back on the sofa and met Laurie's gaze. "I think Red's education is complete at this point," I announced. "But I will need to swing by for performance reviews from time to time, to keep those skills sharp."

Laurie and Red exchanged pleased glances, and they nodded in agreement. "Whenever you like, " Laurie replied warmly. "Our door is always open for you."