i don’t mind one bit love !
that’s a pretty interesting question, and i’m not sure which option i prefer most, so here are the two that i like to imagine :
first one, harry does. louis and him have been tied together at the hip ever since they met, they’re all over each other 24/7 and always messing around together. and the thing is, louis is very much aware of what’s happening but he doesn’t want to think about it, tries to ignore the feelings building up inside of him because he knows where they lead and he doesn’t want to go down that path. so he keeps pushing it away and he cuddles with harry every night in the same bunk and they share a blanket on movie nights and they keep touching each other so much that personal space no longer had any meaning to them. and it goes on like this for a while, until harry starts to wonder about louis and him, wondering why they’re so close and why are the others not the same - why is louis so special to him. because this goes beyond being best friends, right ? so he starts thinking about it, and tries to push more and more to see if louis will stop him - sitting on his lap every time he gets a chance, always finding a way to touch him, telling him how amazing he is. louis doesn’t stop him, he even takes is further - his hands somehow always ending up tangled into harry’s hair, calling him love and baby and darling, and touching him just as much. so harry is pretty confused, until one day louis and him kiss - by accident, of course. louis freezes but harry simply smiles and pokes at him and asks if he knows what’s for dinner. and well, after that, it becomes a thing, and harry can’t ignore it any longer. so one day, after rehearsal, he grabs louis’ hand and drags him to an empty dressing room, pushes him on the couch, straddles him, takes his face in both of his hands and when their foreheads touch, he whispers “i think i like like you louis. i like like you a lot.” and louis’s answering smile is way enough of an answer, beaming like crazy and eyes crinkling, before he launches himself at harry and kisses him senseless. (when they tell the three other boys, blushing like mad and holding each other’s hand, they just frown and ask why they’re telling them now when they’ve been dating for weeks. louis and harry don’t correct them)
BUT. second option, louis does. see, harry is this cute, young, endearing 16 year old and louis feels pulled towards him, as if he were graviating around him or something, and he knows from the start that there is only one way this is heading, and he doesn’t really know what to do with it. but he can’t keep himself from getting as close as possible to harry, touching him as much as he can, pushing him, always pushing him to test the waters, see how he reacts to louis invading his life. and the thing is, harry either is oblivious as fuck, or he likes it - louis can’t tell, really, because one moment harry is coming to sit on his lap to watch a movie, wiggling around with his thighs’ bracketing louis’, and the next he’s crying when bambi’s mum dies, his innocent eyes looking up at louis. so louis feels a bit like he’s playing with fire, but he can’t help himself. he keeps teasing harry and keeps pushing their boundaries - to be honest, it’s not like they have any much left at this point, what with them sleeping in the same bunk every night and sharing everything they can. sometimes, it really does feel like they’re dating, except, well, without the kissing and all the fun stuff. not that louis is not happy with the situation, not at all, harry is his best mate and he’s having the time of his life. it’s just that sometimes, he can’t help but wonder what it could be like, being with harry. as boyfriends. and it’s a scary word, but louis has come to think about it more and more, and the idea is so, so appealing. also, he’s had to rush to the bathroom to take care of sudden boners more and more as time passes, and he knows that it can’t keep going on like this forever - he needs to know where harry stands. so one night, when everyone else is alseep and harry is cuddled against his chest, having just finished a story about a movie he saw last christmas on tv, louis gently touches his cheek, caressing the soft skin there, while the other grabs harry’s hand, and he goes for it. “d’you like me haz ? like, do you like like me ? because i do. i like like you a whole damn lot, and i think you might like me back, and it makes me want to kiss you all the time.” harry’s eyes go huge and he stays silent for a beat or two, then he says he’s not sure but he will relly like like it if louis were to kiss him now. so louis kisses him, and harry must like like it because he kisses him back. they’re boyfriends from then on.