bilbos:

mmm thorin asking bilbo to help him with his braids, all blushing and shy, because he very wrongly assumes that bilbo will know what it means (as a romantic gesture of some kind) and bilbo accepts unknowingly, surprised to see thorin oakenshield acting so strangely coy…..

and so later, he’s threading his deft little fingers through thorin’s hair, braiding it, and he notices that with every light pull thorin seems to have a little reaction, a low rumble coupled with a blush high on his cheeks. 

so bilbo starts getting a little more experimental, purposefully rubbing his hands up and down thorin’s scalp and tugging gently at his hair until he has thorin all worked up in front of him- and by that point he’s figured it out, realized this isn’t a thing that just friends do. So he abandons all efforts with the braiding and just starts letting his fingers roam further…just to thorin’s neck, at first, and then slipping down beneath the collar of his shirt to skim against his strong back…and when bilbo figures he really has thorin at his mercy, he climbs into his lap and leans right in and kisses him, delighting in watching thorin’s heavily lidded eyes snap open in surprise as his arms close tight around bilbo !