aran cares about the twins. they're both important to him and he wants to be there for them if they ever need anything.
so why does aran find himself more drawn to osamu? they're both his friends, obviously. you can't really get one twin without the other, but they're both different. through all their similarities, there's small differences. but there's nothing spectacularly different about them. so why is osamu more captivating?
aran always finds himself giving in to osamu's requests, simple questions asked when it's just the two of them.
"I've never kissed anyone, aran-kun. could you help me out?" "it's cold. can you cuddle with me?" "there's a new restaurant that's opened up and i don't wanna go with tsumu, will you go with?"
aran can't say no to osamu. there's a permanent blush on osamu's cheeks that aran loves, and aran's over for when osamu pouts. they've kissed many times before. gone out to eat together. cuddled and watched movies together.
aran wants more. no, he needs more. he's gotten a taste of osamu and craves more. but... is it love? no, it can't be. they're just friends. the twins are both affectionate with people they care about. he's gotten hugs and from them and held their hands many times before. but things with osamu just feel different.
"osamu," aran says softly. osamu's laying in his lap, aran thinks that his breath is steady enough that he's sleeping. hopefully osamu is. he doesn't even know why he's starting this conversation.
osamu looks up at aran, eyes blinking a couple times. ah, he was almost asleep. "what's up?" osamu asks, shifting slightly to lay on his back instead of curled up on his side. he's adorable.
aran fixes osamu's bangs, which have grown out considerably. his roots are showing and his hair is falling into his eyes. "I didn't mean to wake you up," aran says, stalling.
"it's fine," osamu mumbles. "you okay?"
"yeah, I..." aran stares at osamu. "I like you."
osamu's eyes widen. "wait, seriously?" osamu sits up, leaning close to aran's face. "are you fucking serious? I've been flirting with you for a year and you're finally confessing?"
"wait- what? you've been flirting with me?" aran asks.
"how often do I kiss my friends, aran?"
"i just thought..." aran trails off. "oh my fucking- you have been flirting with me." aran realizes. "I'm so stupid."
"you're supposed to be the stupid one, not me!" osamu just laughs harder. aran pushes his shoulder and pouts. "be nice to me."
osamu smiles, calming down. "i like you, too, aran."
aran pulls osamu in for a kiss. and it all makes sense. why aran's always felt differently towards osamu. why the pull has always been stronger. he wants this with osamu forever.