Ah, it's been a while since I got blindsided by a missing yaoi tag... my eyes... XD Everything was so wholesome and then, out of nowhere, dick-grabbing.
1 Year-Later Edit: Reading this in the correct frame of mind for what it is, it's nice enough stuff—though the sudden physical developments to the relationship definitely still falls into some "Uh, in what world is this how relationships progress?! And you definitely should have asked first before doing that" category of yaoi stuff. Otherwise the relationship is broadly adorable.