She pushed the door shut and turned to him with that look. "Tell me what smut means in slang," she said, already pulling her shirt over her head.

"Right now. Use it on me."
He crossed the room in two strides, grabbed her by the hips, and shoved her back against the wall. "Smut means the filthy shit we’re about to do. The kind of raw, nasty fucking where I call you a cock-hungry slut and you beg for more." His hand slid straight down the front of her jeans, fingers finding her already wet. "Like this. You dripping because I’m talking dirty instead of sweet."
She moaned and rocked against his palm. "Keep going. Tell me more smut slang."
He yanked her jeans open and pushed two fingers straight inside her cunt. "Pussy. Cunt. Snatch. Whatever you want to call this greedy hole. Right now it’s a dripping fuck-hole that needs my cock." He pumped his fingers hard, thumb grinding her clit. "You want me to rail you like a porn slut? That’s smut. You want me to bend you over and pound your ass until you scream? That’s smut too."
Her knees buckled. He caught her, spun her around, and bent her over the arm of the couch. Jeans and panties hit the floor in one rough tug. He freed his cock, thick and already leaking, and dragged the head through her slick folds. "Look at this cunt, shiny with juice. Smut means I’m about to shove every inch into you and fuck you stupid."
He drove in deep on the first thrust. She cried out, fingers clawing the couch cushions. He didn’t ease up. He fucked her hard and fast, hips slapping her ass, balls swinging. "Take it. That’s what smut is. Me using your hole like a fuck-toy while I tell you exactly how nasty you are."
She pushed back to meet every stroke. "More. Call me names. Use all the slang."
"Slut. Whore. Cum-dump. You love it when I talk like this, don’t you? Your cunt’s squeezing me like it wants to milk every drop." He reached under her, found her clit, and rubbed it rough and fast. "I’m gonna fill this pussy up. Then I’m gonna make you lick my cock clean while I tell you what a filthy little cum-slut you are."
She came hard, cunt pulsing around him, thighs shaking. He kept fucking her through it, not slowing down. When she tried to catch her breath he pulled out, flipped her onto her back on the couch, and shoved her legs wide. "Open that mouth. Smut means you swallow what I give you."
He fed his cock between her lips. She sucked greedily, tasting herself on him. He held her head and thrust shallow, just enough to make her gag a little. "Good girl. Choke on it. That’s the slang we’re using tonight. Choke. Gag. Swallow."
When he was close he pulled back, hauled her up, and bent her over the couch again. This time he pressed the head of his cock against her asshole. "You want this too? Smut means I stretch your tight little ass while you beg for it."
"Yes. Fuck my ass. Make it hurt good."
He spat on her hole, worked two fingers in first, then lined up and pushed. She groaned, half pain, half filthy pleasure, as he sank into her ass inch by inch. Once he was buried he started moving, slow at first, then harder. "Listen to you moaning like a back-alley whore. This is smut. Me wrecking both your holes and calling you every dirty name I know."
She reached down and rubbed her clit while he pounded her ass. "Don’t stop. Tell me I’m your fuck-hole. Your cum-rag."
"You’re my fuck-hole. My personal cum-rag. I’m gonna shoot in your ass and watch it leak out while you thank me." He slammed deeper, grunting. "Here it comes. Take every drop like the nasty slut you are."
He came hard, pulsing deep in her ass. She rubbed herself faster and came again, ass clenching around his cock. When he finally pulled out, thick white cum trickled down her thigh. He scooped some up with two fingers and pushed them into her mouth. "Clean it. Taste what smut means."
She sucked his fingers clean, eyes glassy with satisfaction. He dragged her down to the floor with him, both of them breathing hard. "That’s the slang lesson for tonight," he said, voice rough. "Smut means we keep going until neither of us can walk straight."
She smiled around his fingers and nodded, already reaching for his cock again. "Then teach me more."