I (22f) caught my little sister (18f) sucking cock in our living room [FM]

Monday night, I rolled back to my apartment from my weekly salsa class, horny and turned on from all those close-up dances. I love it when guys grind their cocks into my hips while dancing. Fuck, salsa dancing gets me going so much. Anyway, I share the place with my little sister Ashley, a blonde blue-eyed slut just like me. Sometimes people mistake us for twins, but her tits? Way bigger than mine, always popping out of her tops and turning men's heads. It was spring break, so I figured she would be out partying somewhere, but I was wrong. So fucking wrong.

I pushed the door open, and bam. there she was, Ashley, on her knees in our living room, sucking off some random dude like she's a porn star. She rocked a skimpy tank top and just panties, her huge tits jiggling as she worked his cock. Fuck, and that cock was massive. I guess Ashley knows how to pick the good ones. This guy was definitely enjoying her, hands fisted in her messy hair, shoving her down deep. I watched as his cock vanished into her throat. thick, slick with her spit. Gagging noises all around. He groaned like a beast, head tipped back, lost in her mouth.

I stood there for a couple of more seconds, door half-open. I figured he would panic, zip up, or try to cover up when he saw me. But nope. This cocky bastard grinned, locked eyes with me, and winked at me like I was there to watch him face-fuck my little sis. Ashley didn't even notice me, too busy choking on his meat, spit dripping down her chin, balls smacking her with every one of his thrusts. I was already so horny and wet from salsa, this soaked me even more. Damn, I wanted a cock to play with tonight as well.

I kept standing there, watching my sister deep-throating this cock. I wish I could take credit for her sucking skills, but it was all hers. Guess she's a natural cock sucker, born to drain balls. I jokingly thought about going on my knees, and joining her. Two blondes sucking and fighting over a dick like true sluts, arguing over who gets his cum. That could have been a hot picture. But Ashley handled that cock like a champ herself.

I could've slipped away quietly to my room, but fuck that. "Don't forget the balls, sis!" I yelled, cackling as I bolted to my room. Ashley tried to mumble something out to me, but her mouth was stuffed. Five minutes later, I heard his groan, loud and raw, like he was unloading a gallon of cum down her throat. I peeked out my room, and he was still going, hips bucking, hands gripping her hair, pumping her face full. She slurped it up, spit slicking his shaft, balls smacking her chin as she swallowed every drop. I grinned. Little slut got some talent. Guess it runs in the family.

But fuck, I was so jealous I didn't have a cock like that to suck on. I wanted one so bad that night, just sucking it like a lollypop. I love the sounds guys make when they cum in my mouth. it's the sexiest sound ever, knowing that my mouth and lips made them go that wild. It turned me on so much I grabbed my vibrator from the nightstand. Added some lube from the drawer and went at it, splitting my pussy open. I pictured riding a cock on that couch, that thick cock slamming me while Ashley listened, jealous as fuck from her room. I came fast, legs shaking, pussy dripping onto my sheets.