He waited patiently for Shannon to take the sensation in, not wanting to rush him. He's definitely studying Shannon while waiting, seeing how his body responded and even how it was now. It wasn't the position of somebody who didn't like it, but something more along the lines of curiosity, which was only confirmed when Shannon asked for another strike.

"If that's what you want," he answered before striking him again with the same amount of force. He's definitely going to keep an eye on him throughout this entire part just to see how he responds. It's now turned into curiosity for himself and wondering what exactly was going on in his boyfriend's mind.