Penny Flame gleefully loads up the viewer with information about engaging in rough sex and then gives some potent live demonstrations of what she’s talking about.

Some tips are just common sense: Always pay attention to your partner’s reaction. “You can see in your partner’s eyes if you’ve hit them too hard.” Always have a “safe word” in case things get out of hand. Others — when slapping, stay away from cheekbones, jawbone and ears, don’t go near the neck, ribcage, kidneys — are potentially life-saving.

But Penny doesn’t just talk the talk. In her scene with Derrick Pierce she walks the walk and then some, getting off on every second of slapping and hair-pulling. “After being choked and fucked to the point of orgasm,” she tells us, “there’s nothing like a good slap to bring you back from passing out.” The chemistry between her and Derrick makes it all very arousing.

The tables get turned in the match between Aidan Starr and male submissive Devin. Aidan gleefully objectifies him, using him as a living dildo. She slaps the hell out of the guy, verbally as well as physically. He in turn presses all the right buttons and is ever so grateful for the privilege of pleasuring a dominant femme. The intensity never lets up.

Mark Davis dominates petite blonde Lexi Belle, leaving her ass beet-red. She gets off quite visibly on his powerful fucking. There’s a real moment of truth when at one point she accidentally bites his lip and he slaps her hard, bringing her to tears (rarely shown in commercial porn), after which he becomes solicitous. She is fully committed emotionally and, finally, overwhelmed.

Produced by Tristan Taormino for her ongoing Vivid Ed line, this is a movie you can enjoy even if you don’t feel the need to get rough with your significant other.