Martin grins and coos in soft delight as John scratches gently at his back, shifting a bit to draw him toward an actual itch. It doesn't take him long to realize John might be seeking some reciprocation, and he sweeps his own hand down the long arch of John's back, his smile growing soft and once more indulgent.

"Like that?" he says, seeking direction as well as approval as he returns the gesture along the ridge of one of John's shoulder blades, usual culprits in his experience.