She climbed on top of me without a word, her bare ass facing my face and her wet cunt hovering right over my mouth. I grabbed her hips and pulled her down hard onto my tongue while my cock twitched against her cheek. We were both naked on the living room floor, the TV still playing some bullshit movie we had stopped watching the second she dared me to prove I wasn't all talk about wanting to eat her out.
"Fuck, big brother, your tongue feels so good," she moaned, grinding her pussy against my mouth. I licked her from clit to asshole in one long stroke, tasting how soaked she already was. She wrapped her hand around my shaft and started stroking it slow and tight, her breath hot on the head. Then she took me deep, lips sliding down until her nose pressed against my balls.
I groaned into her cunt and shoved two fingers inside her while I sucked on her clit. She was dripping down my chin, rocking her hips like she wanted to fuck my face. Her mouth worked my cock in sloppy, wet strokes, spit running down to my balls as she bobbed faster. Every time she moaned around my dick it sent a vibration straight through me.
"Sixty-nine me harder," she said, pulling off just long enough to talk dirty. "I want to come on your tongue while you fill my throat."
I didn't need telling twice. I spread her ass cheeks and buried my face between them, tongue fucking her pussy while my nose rubbed her tight little hole. She sucked me like she was starving, one hand cupping my balls and the other jerking the base of my cock in time with her mouth. The wet sounds of her sucking mixed with the sloppy noises of me eating her out filled the room.
She came first, thighs shaking around my head, her cunt pulsing and flooding my tongue with fresh juice. I kept licking through it, not letting up until she was whimpering and trying to pull away. Then she went right back to work on my cock, taking it all the way down her throat until I felt her gag. I thrust up into her mouth, fucking her face while I kept lapping at her swollen clit.
We stayed locked like that for what felt like forever, her riding my tongue and me pumping between her lips. When I finally blew, she swallowed every drop, milking me with her throat until I was twitching and sensitive.

She didn't get off me right away. She just lay there, pussy still on my mouth, lazily licking the last drops from my softening cock.
"Round two in ten minutes," she said, voice hoarse. "I want you to sit on my face next time while I suck you hard again."
I slapped her ass and nodded against her thigh. We weren't done. Not even close.