Stepsis and Her Trans GF Threesome – Amateur MMF Fun

I was in the living room scrolling my phone when my stepsister Emily came home with her girlfriend Riley. Emily’s 24, slim with small tits and that messy ponytail she always has after work. Riley’s her trans girlfriend—cute as hell, petite, long dark hair, perky little boobs, and that confident smirk. They’ve been together a few months, and I’d seen Riley around the house plenty, but never like this.
Mom and Dad were out for the weekend, so the place was ours. Emily kicked off her sneakers by the door, complaining about her shitty shift at the coffee shop. “Feet are killing me,” she said, flopping onto the couch next to me. Riley followed, dropping her bag and smirking at me. “Hey, bro,” she teased. Emily calls me that even though we’re steps. I just grunted, trying not to stare at Riley’s tight jeans.
They started making out right there, casual like it was nothing. Emily’s hand slid up Riley’s shirt, squeezing those small tits. Riley moaned softly, then glanced at me. “You just gonna watch, or what?”
Emily laughed, pulling back. “He’s been single forever. Maybe he needs some help.” She looked at me, eyes sparkling. “You ever thought about it?”
My dick twitched. I’d jerked off thinking about them more than once. “Maybe,” I muttered.
Riley crawled over, straddling my lap. Her ass felt firm against my growing hard-on. “He’s cute when he’s nervous,” she said to Emily. Emily scooted closer, kissing Riley’s neck while reaching for my zipper.
They both knelt between my legs on the carpet. The TV was still on low, some dumb reality show droning. Emily tugged my jeans down, my cock springing free. Hard, thick, already leaking. Riley licked her lips. “Nice.”
They started with a double blowjob. Emily took the head, sucking slow, tongue swirling. Riley licked the shaft, her hand cupping my balls. They traded, Riley taking me deeper, gagging a little but pushing on. Her throat felt tight, wet. Emily watched, fingering herself under her shorts. “Fuck, that’s hot,” she whispered.
I groaned, hands in their hair. Riley pulled off, strings of spit connecting her lips to my cock. “Your turn to fuck her,” she said to me, nodding at Emily.
Emily stripped fast—tank top, shorts, panties. Her pussy was shaved, already wet. She bent over the couch arm, ass up. I got behind her, sliding in easy. She was soaked. “God, yes,” she moaned. I fucked her steady, skin slapping. Riley watched, stroking her own cock—hard, maybe six inches, smooth.
Riley moved in front, feeding Emily her dick. Emily sucked eagerly, moaning around it while I pounded her from behind. The room smelled like sex and Emily’s vanilla body spray.
“Switch,” Riley said. She wanted anal. Emily grabbed lube from her bag—always prepared. Riley bent over next to Emily. I pulled out of Emily’s pussy, slick, and pressed against Riley’s tight hole. She pushed back, taking me slow. “Fuck, that’s good,” Riley gasped.
Emily fingered Riley’s ass while I thrust, then slid under Riley to suck her cock. Double action—me fucking Riley’s ass, Emily blowing her. Riley’s moans got louder, hips bucking.
I felt close. “Gonna cum,” I grunted.
“Not yet,” Emily said. She pulled me out, turned Riley around. They both knelt again. Double blowjob round two—faster, sloppier. Emily deep-throated me while Riley licked my balls. I couldn’t hold it. I pulled out, stroking. Cum shot across their faces—first ropes on Emily’s tongue, then Riley’s cheek. They kissed, swapping it messy.
Riley wasn’t done. She pushed me onto the couch, straddled me reverse. Her ass took my still-hard cock again. Emily sat on my face, grinding her wet pussy on my mouth. I licked her clit while Riley rode me, her own cock bouncing.
Emily came first, shaking, juices on my chin. Riley jerked herself, moaning loud. “Fuck—cumming—” She shot across my stomach, hot spurts. I thrust up hard, filling Riley’s ass deep. We all froze, panting.
After, it was awkward-real. Emily grabbed tissues, wiping faces. “Oven’s still on preheat for pizza,” she said, laughing. Riley pulled up her panties, cum leaking a bit. “Shower?” she asked.
I nodded, dick softening. Emily tossed me my boxers. “Don’t tell Mom we fucked on her couch.”
We cleaned up quick, the TV still buzzing. Pizza went in. Normal life snapped back, but the air still smelled like us.