Blair's Gym Sweat Seduction

The moment I saw Blair Sinclair in my stepfather's private gym, necklace glinting under the lights, her body moving with that hypnotic rhythm, I knew resistance was futile. Sweat traced paths down her curves, and her playful glance promised a challenge I couldn't refuse—one that would leave us both breathless and begging for more. I'd always known Blair was trouble, the kind that wrapped around you like silk and squeezed until you forgot your own name. Stepfather Marcus had brought her into our world a few weeks ago, that casting couch session of theirs still a raw wound in my mind—I'd overheard enough through the walls to fuel a lifetime of resentment. Now here she was in his private gym, the one tucked away in the basement of our sprawling LA home, her blonde hair tied back in a messy ponytail that did nothing to tame its wild waves. The necklace he'd given her—a delicate gold chain with a diamond pendant—dangled between her full breasts, catching the harsh fluorescent lights as she powered through squats on the Smith machine. I leaned against the doorframe, arms crossed, watching the way her leggings hugged every curve of her ass, the fabric stretched taut with each rep. She caught my eye in the mirror, that playful smirk curling her lips like she knew exactly the effect she had. 'Alex,' she said, voice breathy from exertion, setting the bar down with a clang. 'Didn't expect company. Marcus said this was my private session.' I pushed off the wall, sauntering closer, the scent of her sweat mingling with vanilla body spray hitting me like a drug. 'Private? In our house? Come on, Blair. Let's make it interesting. Bet I can outlift you.' Her laugh was low, teasing, as she wiped her brow with the back...