Meet “Sham.” He’s a composite of a dozen creators we spoke to: late 20s, chiseled but not freakishly so, with a following that treats his leg day video like a season finale. Sham started posting free workout tutorials on TikTok. Then he noticed something. The comments weren’t about his squat form. They were about the sweat pooling at his collarbone.

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Critics argue that this niche exploits the vulnerability of the post-workout state. But creators push back. They point out that fitness and sexuality have always been siblings—from ancient Greek gymnasiums (literally, “schools for naked exercise”) to the 1980s Jazzercise erotic underground.

What OnlyShams has done is simply monetize the admission. That feeling you get after a heavy squat—the horny, shaky, victorious buzz? For $9.99 a month, you can watch someone else feel it. And watch them watch you watching.

“I realized that for a huge chunk of my audience, the workout was the foreplay,” Sham told me over a surprisingly bland kale smoothie. “The heavy breathing, the flush, the exhaustion that looks like vulnerability. They didn’t want the porn version of sex. They wanted the porn version of a PR.”

The branding is specific. The classic OnlyFans fitness creator isn’t a bodybuilder (too intimidating) or a twink (too niche). He is the convertible archetype: strong enough to protect you, sweaty enough to want you, and emotionally available enough to reply to a DM about your own deadlift plateau.

As Sham puts down his smoothie and checks his phone—three new messages, one custom video request for “hip thrusts, slow motion, no music”—he smiles.