Bending such as he was now made it harder for him to rock, but now that she had picked up the motion herself, he was quite okay with it. He knew where he was being held, his breath a bit harsh from the end of the kiss and puffing against the hand being supported against her breast. Once he had some of his air back, he tipped his head forward without pulling against the lovely grip in his hair, darted his tongue out and wetted the nipple experimentally. Shifting his hand, he ran a nail across the moistened skin to improve the sensation, beginning to work his way around licking and sucking and enjoying as much as her hold would let him. Anything that kept him active and have her return the favor while the fog in his brain overtook all else in deference to the strain at his groin.