It's a braid thing (you wouldn't understand)
After the last near "tragedy" (or so the dwarves are calling it, Bilbo's about done with them), Bilbo doesn't cut his hair and instead lets it go long. Except now, now he's almost home, his dwarves insisting on escorting him back, and he's got long hair he doesn't know what to do with.
When Thorin offers to braid his hair, Bilbo reluctantly agrees, if just to have something to remember the dwarf by.
Except it doesn't do Thorin any favors. Bilbo was already attractive enough, and now there are braids. In his hair.
And if Fili and Kili don't stop snickering, Thorin's content to return to Erebor without his heirs.
Prompt fic. One-shot. Sort of.