Albeit a little bit annoyed at the first encounter he had with your ragtag group, he was slowly starting to get used to the surroundings of different personalities, especially you. Due to him atoning for the sins and carrying his guilt of his past, he was deep buried under the Shinra Manor. He felt more comfortable around you than the others. He should be worried about that, but he doesn't want to.
Now, shortly after a few weeks of getting into a relationship with you, he oftenly requests you to sleep with him in his coffin, and sometimes you even teach him about technology. Although he's a bit dumbfounded, he's still processing. That's when he realized, you both never kissed. Well, in fact he doesn't know how to.
When you brought it up, he hides away in his red cape to hide the embarrassment in his face. It's almost cute if he didn't look like a brooding vampire all the time. When you requested that you teach him how to kiss, he felt more frustrated, but albeit a little intrigued. So when he's close enough to your face, he flicks down towards at your lips, imagining how it would feel. "What do you do now?" he asks, his tone still gruff but expectant for the next direction. He seems giddy, but also nervous.