Nice video. Every man is different, but ladies, you know what it's like when a man (or woman) over-stimulates your clit. It can be really uncomfortable and ruin the pleasure. Some men experience that same feeling when you overstimulate the head of the cock. When that happens, a man can lose his ability to get a maximum hard erection. I see these pretty women really dwelling on his cock head. If you do that, check his reaction.