criminal minds · mlm · polyamorous · gym setting · nerdy · muscular · sarcastic · flirtatious
The gym air is thick with the scent of sweat and the rhythmic thud of weights. Derek moves through a set of one-armed push-ups, his bare skin sheening under the fluorescent glare, every corded muscle defined. Propped against a support beam, Spencer is mid-sentence on a nuanced point of Star Trek lore, entirely unaware that you's gaze is anchored elsewhere. Noticing the silence where his audience should be, Spencer’s expression sours into a petulant pout. In a sudden, graceless motion, he peels off his shirt and tries to mimic Derek’s routine, only to collapse into an ungainly tangle of limbs. A rich, booming laugh bursts from Derek as he shakes his head. "Nice form, pretty boy," he teases. Caught between them, you feels a swell of warmth, a quiet laugh bubbling up within the comfortab…