After the kitchen, none of us said much at first.Riley stayed sitting on the island for a minute, legs still spread, breathing hard while she pulled her tiny shorts back up. Cum was still smeared across her tits and stomach—shiny streaks that caught the morning light. She didn't wipe it off right away. She just looked at me with half-lidded eyes and a lazy smile, like she was proud of the mess we'd made.Lena stood up slowly. Her heavy breasts swayed as she moved, nipples dark and still hard from the cold air and everything else. She didn't bother putting her sweatshirt back on. She just grabbed a dish towel from the counter, wiped the worst of my load off her chest in slow circles, then tossed the towel into the sink. A few white drops clung to the inner curves of her tits anyway. She left them there."Living room," she said. Voice low. Calm. Like this was just the next normal thing on the schedule. "Mom's not back till four. We've got time."Riley hopped down. Her shorts were crooked, one leg hole riding higher than the other, showing more thigh than they were meant to. She didn't fix it. She just walked past me, brushing her sticky breast against my arm on purpose as she went.I followed.The living room was big—open plan, connected to the kitchen so you could still smell the syrup and coffee. Big sectional couch in soft gray fabric. Huge TV on the wall. Floor-to-ceiling windows with sheer curtains that let in tons of light but kept nosy neighbors from seeing straight in. Thick rug under the coffee table. Everything looked normal. Except now it felt like the room was holding its breath.Riley flopped onto the middle of the sectional, legs tucked under her. Her tank top was still pushed up, tits out, shiny with drying cum. She didn't cover up. She just leaned back against the cushions and patted the spot next to her."Come sit, Ethan."I sat. Close. Our thighs touched right away.Lena didn't sit yet. She walked around to the front of the couch, facing us. Hands on her hips. Breasts hanging full and heavy, swaying just a little with each breath. The leggings were back on, but the crotch was dark with wetness.She looked at me. Really looked."You're not blushing anymore," she said. "Not acting shy."I met her eyes. "No point pretending now."Riley reached over. Her fingers slid under my t-shirt, tracing the line of my abs. Light. Teasing. "He's definitely not the same kid who used to run away when we changed in front of him."I caught her wrist. Not hard. Just enough to stop her hand from wandering lower. "I'm done running."Lena stepped closer. She stood right between my knees. So close I could smell her—vanilla lotion mixed with sex and sweat.She bent at the waist. Her tits hung forward, inches from my face. The nipples were thick, puckered tight. Still glossy from earlier."Touch them," she said. Quiet command.I didn't hesitate.Both hands came up. I cupped the undersides first—lifting them, feeling the weight settle into my palms. Soft. Warm. So full they overflowed my fingers. I squeezed gently, thumbs brushing the sides. Lena let out a small sigh.Riley scooted closer. Her hand found my cock through the sweatpants again. It was already half-hard, thickening fast under her palm. She rubbed slow circles over the head.I kept my focus on Lena's breasts. I slid my hands up higher, thumbs finding her nipples. They were hard little peaks. I rolled them between thumb and finger—slow at first, then a little firmer. Pinching just enough to make her gasp."Like that?" I asked."Harder," she breathed.I pinched harder. Twisted lightly. Her head tipped back. A soft moan slipped out.Riley leaned in. Her lips brushed my ear. "You're good with your hands. Bet you're even better with your mouth."I turned my head. Kissed her—slow this time. Tongues sliding together while my hands kept working Lena's tits. Squeezing the soft flesh, kneading it, letting it spill between my fingers.Lena stepped even closer. One knee came up on the couch beside me. Her breast brushed my cheek. I broke the kiss with Riley and turned toward it.I didn't suck yet. Just dragged my tongue along the lower curve—slow, flat licks that made her shiver. Then up the side. Tasting salt and skin and the faint leftover stickiness of my cum.Riley's hand slipped inside my sweats. Cool fingers wrapped around my shaft. She stroked once—base to tip—spreading the fresh pre-cum that was already leaking."Fuck, you're leaking again," she whispered. "So hard already."Lena grabbed the back of my head. Gentle but firm. Guided my mouth to her nipple.I opened. Took it in. Sucked slow at first—lips sealed around the areola, tongue flicking the tip. Then harder. Pulling the whole nipple deep. Teeth grazing just enough to sting without hurting.She moaned louder. Her free hand reached down, rubbed herself through the leggings.Riley kept stroking me—slow, tight pulls. Her other hand slid under her own shorts. I heard the wet sound of her fingers moving between her legs.I switched to Lena's other breast. Same thing—suck, swirl, light bite. She arched into my mouth, pushing more of her tit past my lips.My hands weren't idle. One stayed on her free breast—squeezing, rolling the nipple between fingers slick with spit. The other slid down her side, over the curve of her hip, then around to her ass.I groped her there—hard. Fingers digging into the firm flesh through the thin leggings. She pushed back against my hand, grinding a little.Riley noticed. She leaned over, kissed Lena's shoulder. Then lower. Her tongue flicked one of Lena's nipples while I sucked the other. We worked them together—two mouths on her tits, hands everywhere.Lena's breathing turned ragged. "God… keep going…"I pulled back just enough to speak against her skin. "Turn around."She did. Faced away from me. Ass right at eye level.I hooked my fingers in the waistband of her leggings and tugged them down slow. Inch by inch. The fabric peeled away from her skin. No panties again. Just smooth round cheeks and the pink wet slit between them.I grabbed both ass cheeks. Spread them a little. Groaned at the sight—her pussy glistening, lips puffy, clit peeking out.Riley slid off the couch. Knelt between my legs. Pulled my sweats down fully. My cock slapped up against my stomach—thick, veined, head shiny.She looked up at me. "Want me to suck it?""Not yet," I said. "Tease first."She smiled. Leaned in. Dragged her tongue along the underside—slow, wet stripe from balls to tip. Then blew cool air over it. My hips jerked.Behind me, Lena backed up. Lowered herself until her ass pressed against my chest. I reached around, hands finding her tits again. Cupped them from behind. Squeezed hard. Pinched both nipples at once.She rocked back against me—grinding her wet pussy along my abs.Riley kept teasing my cock. Licking the head in little circles. Flicking her tongue under the ridge. Never taking it in fully. Just enough to drive me crazy.I slid one hand down Lena's stomach. Found her clit. Rubbed slow circles. She moaned, loud."Fuck—right there—"Riley finally took the head into her mouth. Sucked once—hard—then popped off. Grinned up at me."You're throbbing so much."I pinched Lena's nipples harder. She cried out—half pain, half pleasure."Enough teasing," Lena panted. "I need more."Riley stood up. Stripped her shorts off completely. Tank top next—tits bouncing free again.She climbed onto the couch. Straddled my lap. Her wet pussy hovered right over my cock.Lena turned around. Faced me. Straddled my thigh. Started grinding her clit against the muscle there—slow rolls of her hips.Riley lowered herself. Just the tip slipped inside her. She stopped. Rocked a little. Teasing us both.I grabbed her hips. Pulled her down halfway.She gasped.Lena leaned in. Kissed me deep while her sister rode me slow.My hands went back to their breasts—squeezing, groping, thumbs flicking nipples in time with Riley's movements.The room filled with wet sounds. Heavy breathing. Soft moans.We weren't rushing anymore.We were just… taking our time.