SAN FRANCISCO — BDSM and fetish erotica studio Kink.com calls the idea behind its revamped gay adult website ButtMachineBoys.com “the classic formula of machine-versus-manhole.” Now that gay adult performer-director Van Darkholme has taken the helm, the content has become edgier, darker and — if possible — more hardcore.Part of the studio’s KinkMen.com line, Butt Machine Boys re-launched this week with 14 brand-new, high-definition videos and hundreds of accompanying still images. The site still offers members complete access to 134 classic shoots and thousands of photos from the Butt Machine Boys archives.

“I have a selfish reason for reviving BMB,” Darkholme said. “I enjoy seeing the hot studs getting off on the machines. I enjoy it even more when the machines are going full throttle and the studs are screaming in a mélange of pain and pleasure.”

Darkholme plans to deliver every Tuesday exclusive video of a new stud taking several machines for a joy ride, pushing the limits of what a man’s hole—and fetish appetites—can handle.

BMB’s updates come in three basic flavors. The “Butt Challenge,” and “Private Moment” allow the performers to explore Kink.com’s infamous fucking machines at a pace ranging from leisurely to jackhammer-speed. The darker bondage-and-domination themes of the “Ass Master” updates feature a disembodied computer voice compelling captive men to fuck on demand.

Male performers featured on the site exhibit Darkholme’s well-known proclivity for well-muscled studs, hairy and smooth. The stars of ButtMachineBoys.com range from nervous newcomer Steve German and 22-year-old machine virgin Jason Reynolds to popular gay adult performers like Tyler Saint, Dak Ramsey and Drake Jaden.

Darkholme is known in gay erotica and bondage communities as a master rope rigger, acclaimed photographer and the director of films featuring intense gay sex. When he signed on to direct Kink.com’s first gay site, BoundGods.com, he expressed excitement about gaining access to the studio’s arsenal of sex machines. The one-of-a-kind collection features dozens of machines with a mind-boggling variety of thrusting, rotating, vibrating, pulsating and pumping dildos, tongues, pistons, flywheels and more. Many of the devious devices employed on the site were custom-built for Kink.com’s solo-girl site FuckingMachines.com and its other straight and girl-girl sites. The devices can be seen nowhere else.

In 2002, Kink.com launched the original ButtMachineBoys.com to explore the possibility of male pleasure rendered by cold steel. The site was updated regularly until 2004, when the company put production on indefinite hold. The site continued to attract a dedicated following, though, even without new content.

Darkholme said directing the born-again enterprise has fulfilled one of his many kinky wishes, and he couldn’t be more delighted.

ButtMachineBoys.com and all the other sites in the Kink.com network are incorporated in the Kinky Dollars affiliate program.