If he was trying to make it difficult for Chas to think, he was certainly succeeding. At the very least, he was making sure that what thoughts she did have were all focused on him, how much she wanted him, and what she wanted him to do to her. Anything other than that sort of fuzzed out, especially when he deepened the kiss and his hands found her pants.
She wanted them off, and there were only two things in the way of that. Without breaking the kiss, she drew up one leg, bending it at the knee and pressing her heel into the wall. The motion not only served to press her against him, but also allowed her to reach down and unzip the side of her knee-high boot, so that the shoe could be discarded. Repeating the process on the other side, shifting just enough to make the action possible without having to break the kiss or pull his hands from her pants, she kicked the boots off one at a time, losing at least four inches of height in the process.
Her pants unbuttoned now, she let her hands returned to his skin, trailing down over his chest again as she broke the kiss to half-growl, "Off."