Those eyes of his rolled back in his head a little when the Doc's body rocked against his own, and a gasp of surprise and pleasure spilled from his parted lips. Panting softly, that chest of his rising and falling with quickened breath, John found himself enthralled by her every movement.
Just the feel of her skin beneath his fingertips was intoxicating, yet as she slowly rolled her hips again Grimm's hips rose off the couch a tad, adding to the friction by grinding against her too. The way she teased him, with word and action alike, had the Marine's pulse racing fast. And when she spoke aloud all he could do was manage a weak nod of his head, before leaning close and letting his tongue brush across the fabric just over her nipple.