Suck

You put a hand on the back of Saskia's head and pull it down. She seems surprised at your forcefulness but she grins and opens her mouth to take you inside.

It's the best thing you've ever felt. You've gotten blowjobs before, but Saskia'a mouth is something else. The second she's gotten your dick between her lips, her tongue is swirling around your cock and her head is bobbing up and down. Her focus is on the dick, but every once in a while she looks up at you with her cheeky smile and you have to keep yourself from cumming.

She's still got her hand on Kevin's cock, stroking lazily. He gently pries her hand off of it and gets behind her, jerking himself off as he gets ready to penetrate Saskia.

You keep your hand on her head, leaving her free to reach back and spread her cheeks. You watch her as Kevin fucks her from behind, her eyes rolling back into her head. Her moan is stifled by your cock, and you start thrusting into her throat, matching Kevin's pace.

"Harder," she mumbles.

"What?" Kevin says.

Your dick pops out of her mouth for a second. "Harder!" she yells.