Director James Avalon’s Shades of Kink series from Sweet Sinner always delivers moody, beautifully shot erotica for couples who crave some plot with their BDSM play. As the series has evolved, so has the storytelling, and what consumers will find in the fourth installment is the tale of a douchebag politician (Michael Vegas) who gets his comeuppance in a most arousing manner.

Before that happens, there’s plenty of beautifully lit screwing courtesy of Vegas, a sexy escort (Riley Reid), the politician’s chief of staff (Steven St. Croix) and his cheating wife (Karla Kush).

That’s just a sizzling prelude to the main attraction: Chanel Preston as a tough Domme who takes plenty of prisoners in a working dungeon, among them Cassidy Klein and Zoey Foxx—and Vegas sneaks in to watch her work them over.

Can she handle this corrupt pol? You bet. If Anthony Weiner had run across her instead of Sydney Leathers, he’d be a better man today.

When Vegas shows up again at her club, Preston says, “If it isn’t the big, bad boss.” She grabs his tie; he smiles. “I’m not here for your enjoyment,” she growls, adding, “We’re not in your office. This is MY office.” What ensues is a cathartic, life-changing fuck, the shadowy lighting illuminated just enough to show Vegas’ light curls and Preston’s bright red lipstick and perfect breasts.