Selina Bentz and Mike Ox take a study break because he's too distracted with her tits right there to play with. They work on applied biology instead, but when Mike cums while Serena's sucking him, his GF is disappointed she didn't get fucked. Mike's nerdy roommate Kai Jaxon knocks on the door to get his books, and Mike drops them on the floor, so Serena goes to help... and maybe get some help in return! She bends over and pulls her panties to the side, and Kai is smart enough to start fingering that pussy. Serena sneakily sucks him, and Kai fucks her doggystyle while Mike is none the wiser. They sneak to Serena's room so she can ride the nerd's big dick and get fully satisfied, then covered in cum!