"...the fuck?" Marcus froze, hand gripping the arm of the chair tightly. He'd already felt his heart thudding in his chest, pulse sped up, responding to Isaac's lazy insistence that they'd fuck (and Marc's wanting to), but this sudden onset of nerves was different. He pulled back, pushing to his feet, taking two steps back before he'd fully realized he'd moved.
Turning back to glare at Isaac, he growled roughly, "Just how the fuck did my name come up when you were talking about your lovers?"