Trainer Sebastian Keys is pissed off that Nikki Vicious is late for their session, again. When Vicious finally shows up, she "kind of forgot" her gym clothes, and when Keys starts with jumping jacks, she just watches him disdainfully, but when he suggests they do stretching exercises—she still just watches. "Is there any exercise you actually enjoy?" She says, "I like sex," so he drops trou and has her suck him, counting down the reps. When she drops trou he tops her, and at scene's end, he triumphantly declares, "At last, I finally see you break a sweat."

Lena Moon cashes in a free-workout coupon with Damien Stone, but when she says, "I need a break," and lights up a cigarette, he stops her. When she takes off her jeans for more flexibility, Stone ogles her ass, and when he spots her on some weights, she pulls down his pants and starts sucking him. When he pulls down her pants, he shows her new uses for all the gym equipment. 

When Casey Kisses tells trainer Keira Croft she wants to "take it to the next level," Croft starts by inserting a phone-driven plug, distracting Kisses through her workout. Croft then follows up by fucking Kisses with a strap-on before Kisses turns the tables, bending Croft over and fucking her.