Lene Hefner is sitting in a bar with some truck driver dude, having a laugh and a drink, flirting shamelessly when Evan Stone walks in. He watches their exchange for a while, delighting in trucker dude slipping his hand up her skirt, when he orders an "expensive drink" to take over to her.
"Get lost, asshole," trucker tells him, but Stone stays put, and soon it's he and Hefner alone at the table together. "I couldn't help noticing that guy was touching you there," Stone says to her. She feigns innocence, but soon he has her confessing when he sticks his fingers in her twat. "Your place or mine," he demands, licking his fingers.
We never find out which one, but either way it turns out a scorching sex scene, with Stone tongue fucking Hefner, Hefner sucking Stone's rod as if she were trying to get an extra-thick milkshake out of it, and the two wrapped up in an energetic mish leaving Hefner calling (with a Rebel Yell, of course), "More! More! More!" Stone responds by bathing her back in cum.
It turns out that Hefner and Stone (a struggling author) are married, and this is one of the little games they play together - Hefner goes out and flirts with a man, Stone gets turned on, and off they go to fuck. There's some extraneous subplot (Charmane's possessiveness of cutie Monique Alexander, Kelsey has a dumb boyfriend, etc.) but for the most part, the sex is good. Especially Hefner's pairing with the mysterious Mark Davis, who has been watching Stone and Hefner's antics for quite some time.
With her fishnet-covered legs stretched way behind her ears, Davis jills Hefner's clit, then plops her down on his lap for a little cowgirl, with Stone watching from behind a window. So what does Davis have to do with it all anyway? You'll have to watch and see.