Why are these guys just so damn cute?

I feel like I'm reading about an actual beginning of a relationship between two consenting adults who really love each other and, though they desire each other sexually, they also desire for the other to be comfortable and wait for the right time to give themselves to each other. Yuuji and Saburou are so appropriate for each other, it's amazing.

It's essentially everything I've ever wanted in a BL manga ;_;