Lingerie Temptation at the Lake House
Copyright© 2026 by Rcartiva5
Chapter 2
Erotica Sex Story: Chapter 2 - During a family holiday at his mother-in-law’s lake house. What starts as a risky, stolen moment quickly turns into something neither of them can resist.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Consensual Heterosexual Cheating InLaws Exhibitionism Masturbation Voyeurism
I stepped into the bathroom where it had all started, carrying the handful of soaked satin panties. I dropped them into the laundry basket on top of the purple set Megan had already left there. For a moment I just stared, mind replaying everything: the way she had watched me, the way she had joined me, the way she had taken me.
Megan’s voice pulled me back. “Care to join me and wash my back?”
I looked up. Water traced every line and curve of her body, streaming over her breasts, down her stomach, and along her legs. Her eyes had that same hungry look. I took the soap she offered, stepped inside, and pulled the shower door shut behind me.
I started soaping her slowly, palms gliding over her shoulders and spending extra time on her full breasts. My thumbs circled her hard nipples until she arched into me with a soft moan. I moved down her back and around to her flat stomach. She pressed back against my rock-hard cock, grinding slowly.
My soapy hands moved lower, sliding over her pussy. She moaned louder. “That might need some extra cleaning.”
I set the soap down. One hand continued massaging her breasts while the other slid up and down her slick folds. She pushed her ass back harder, humping my cock between her cheeks. Her moaning grew louder and breathier.
She spun around, grabbed my cock, and kissed me deeply, greedily, her tongue claiming mine. “I want your cock in me,” she growled against my lips.
She lifted one leg onto the built-in tile seat. I stepped in close and slid inside her slowly. She breathed in sharply as I bottomed out.
I gripped her ass with both hands, holding her firmly while I started long, deliberate strokes, pulling almost all the way out before sinking deep again. Each time I bottomed out she let out a little whimpering moan, hips grinding back to meet me.
Our pace quickened. Her moans turned urgent. My balls pulled tight. “You’re so fucking hot,” I groaned. “You’re going to make me cum.”
She pressed her lips harder against mine as her body shuddered with an orgasm, pussy clamping down around my cock in rhythmic waves. It pushed me over the edge. I buried myself deep one last time, squeezing her ass and pulling her tight against me. My cock erupted, pulse after heavy pulse flooding her hungry pussy, each one weakening my knees.
“Oh my god, that was incredible,” I breathed. “You are an amazing woman.”
She held me close as the water ran over us, both of us panting, hearts hammering. We finished cleaning each other, hands gentle now, almost tender, stopping before the hunger could take over again.
While we were drying off she said somberly, “We can’t do this again. You’re my son-in-law. Amanda would be devastated, and I couldn’t stand to hurt her. It’s just been so long. I got caught up in it.”
Guilt hit me hard. I nodded. “You’re right.” I hugged her and added, “Maybe you should find someone. I would have pursued you if we had met before Amanda.”
That seemed to perk her up a little. I kissed her cheek and left her to change.
That night I lay in bed beside Amanda, her breathing soft and even. I drifted in and out of sleep, mind replaying the day: the black satin hugging my cock, Megan’s purple panties pulled aside, the way she had ridden me in the shower. My cock pushed against my pajama pants, hard again, guilt twisting with raw desire. I couldn’t relieve it. I just lay there, aching, until sleep finally found me.
Down the hall Megan lay wide awake in her bed. She wore a pink satin and lace babydoll that hugged her curves, the lace trim brushing her hard nipples with every breath. The matching high-cut bikini panties were already damp. Her body was tingling, hungry with a need she had buried since her husband died. This experience had cracked something open inside her, raw, urgent, demanding.
Her mind replayed watching him stroke his beautiful cock with her panties, the way he had filled her, the way he had moaned her name. She slid her hand down the smooth satin top, fingers slipping under the waistband of her panties. One finger traced the slick line of her pussy. She stifled a moan. Another finger joined, sliding up and down, straddling her swollen clit. Her pussy opened greedily as she pushed two fingers inside, going deeper with each thrust.
She fantasized about her son-in-law’s cock plunging into her, hard, deep, relentless. Her pace quickened. The orgasm built fast and intense. She came hard, again and again, fingers pumping furiously, pussy clenching and gushing, wetness soaking the satin crotch dark. She bit her lip to stay quiet, body shaking through wave after wave until she finally collapsed, panting, flushed, alive again.
Sleep found her at last, a small, satisfied smile on her lips.
The next morning I stood at the patio door, coffee in hand, everyone still asleep. The sky was clear and the lake flat as glass.
Amanda wanted to take the pontoon out, something easy for our last full day at the lake. The kids squealed when they saw the cooler packed.
Amanda walked into the kitchen. I handed her a cup of coffee. Leaning back against the counter as she sipped gave me the chance to admire her body. She was wearing a black bikini, simple two-piece with high-cut legs and modest coverage on top. She looked good, toned from yoga, curves soft but athletic, less voluptuous than her mom but still beautiful in that quiet, unassuming way. She blushed slightly when she noticed me staring. While I was moving in to hug and kiss my wife, her mom entered the kitchen. My cock twitched at the sight.
Megan wore a navy satin-like bikini, high-leg cut with thin ties knotted at her hips and a seam up the crinkled back that tucked into her ass. The top hugged her fuller breasts together and let them spill slightly in the middle. The glossy fabric almost looked liquid the way it glistened in the sun. It clung to every curve. I thought, “Was this deliberate? Maybe.”
She caught my eye as she adjusted the ties, lips curving in a private smile. Now I was sure she was trying to tease me. Oh ... this was going to be a long day.
We loaded up on the pontoon. I drove, Amanda beside her mom, the kids giggling in the front. Megan sat forward enough, across from me, so I could see her out of the corner of my eye. The navy satin bottom rode up just enough to show the curve of her ass when she shifted. Every time we hit a wake, her breasts bounced lightly, nipples stiff against the fabric. She kept crossing and uncrossing her legs on the trip to the sand bar, pausing uncrossed long enough for me to get a look at her satin-covered pussy.
At the sand bar Amanda was busy rubbing sunblock on the kids. Megan smiled sweetly at me. “Be a dear and help with some sunblock on my back.” She turned and bent over to grab the lotion out of her bag, almost burying her ass in my face. I wanted more than anything to slide her bottoms aside and sink my tongue into her.