He'd expected some degree of stammering indignation; well deserved as it might be, he's still teasing. Specifically, he's teasing more than he might have otherwise, with the subject ostensibly put to bed and Martin already having suffered through his fair share of embarrassment. If being gracious was his only goal, he would've limited his response to a pointed look before changing the subject.

But he's discovered a hook so fascinating that he has no intention of letting Martin off of it just yet. It's the blush that convinces him, and John sets down his tea so he can give Martin his full attention, pivoting on the cushions to face him, an incredulous grin tugging at his lips.

"Martin," he says with considerable relish, elbow propped on the back of the couch and eyes bright with interest, "are you jealous?"