The flesh of these parts was surprisingly soft. He'd always heard that humans were fragile in their nethers, but it wasn't until he developed his own legs that he realized how true that was. He didn't dislike the sensation of the man's arousal brushing against his tongue, but he was used to raw flesh between his teeth. In this case he needed to be careful. His teeth are pointed, even like this, which was important for him to remember when he held a man's...well... manhood in the palm of his hand.

Yet as careful as he is, he is also inexperienced. So as he attempts to take Akutagawa's shaft further past his lips the very tips of his teeth prick against his skin.