Sarah kept her smut bookmark tucked between the pages of the dirtiest book on her shelf. It was just a plain black leather strip, but she used it to mark every scene that made her wet. Tonight she left the book open on the bed while she showered. When Mike walked in he saw the bookmark sticking out and the page it held.
He picked it up and read the marked paragraph out loud. “She dropped to her knees and took his cock straight down her throat without a word.” Mike looked at Sarah when she came out of the bathroom in just a towel. “This what you were reading?”
“Yeah,” she said, dropping the towel. “Read the next line.”
Mike read it. “He grabbed her hair and fucked her face until she gagged.” He set the book down. “You want that?”
Sarah nodded and knelt on the floor in front of him. “Do it. Use my mouth like the bookmark says.”
Mike unzipped and pulled his cock out. It was already hard. He wrapped his hand in her wet hair and shoved it between her lips. Sarah opened wide and took him deep on the first thrust. He didn’t ease in. He drove straight to the back of her throat the way the book described. She gagged once, eyes watering, but she stayed on her knees and let him use her.
“Fuck, that’s it,” he growled. “Take every inch like the slut in your book.”
He held her head and pumped his hips, fucking her mouth in steady strokes. Spit ran down her chin and dripped onto her tits. Every time she gagged he pushed a little harder. Sarah’s hand slid between her legs and she rubbed her clit while he used her throat.
After a few minutes Mike pulled out. “Get on the bed. Page says she gets bent over next.”
Sarah climbed onto the mattress and stuck her ass up. Mike grabbed the book again, found the bookmark, and read the next part. “He slammed into her cunt without warning.” He lined up behind her and drove his cock straight into her pussy in one hard thrust. Sarah cried out and pushed back against him.

“Harder,” she panted. “Just like it says.”
Mike fucked her exactly the way the marked page described—deep, rough, no buildup. His hips slapped against her ass with every stroke. He reached under her and pinched her nipple while he pounded. Sarah moaned and reached for the bookmark, holding it in her fist while he used her.
“Flip the page,” she said between thrusts. “See what happens next.”
Mike grabbed the book with one hand, still buried inside her. He turned the page and the bookmark fell out. The new paragraph said the guy pulled out and shoved into her ass instead. Mike didn’t ask. He pulled his cock free, spit on her asshole, and pressed the head against it.
Sarah pushed back. “Do it. The bookmark says so.”
He sank into her ass in one slow push until his balls rested against her. Then he started fucking again, harder than before. Sarah’s fingers worked her clit in fast circles while he stretched her. The room filled with the sound of skin slapping and her wet moans.
“Tell me what the next page says,” she begged.
Mike read it while he fucked her ass. “She comes with his cock buried in her ass and then he fills her up.” He dropped the book, grabbed her hips with both hands, and drove into her faster. Sarah rubbed her clit harder until her legs shook and she came with a loud, broken cry. Her ass clenched around him.
Mike kept going until he was close, then pulled out and flipped her onto her back. He straddled her chest and jerked his cock over her open mouth. “Swallow it,” he ordered, and shot thick ropes across her tongue and lips. Sarah swallowed every drop she could catch and licked the rest off his fingers when he fed it to her.
They stayed like that for a minute, breathing hard. Mike picked up the smut bookmark from the sheets and tucked it back into the book at the last marked page.
“Next time we read the whole chapter,” he said.
Sarah smiled, still tasting him. “I already marked the best parts.”