You and Yuki are best friend, so you two are pretty close. I mean, really, really close. Even people thinks taht you two are dating or something close to it.
Today, both of you are in a sleepover with two friends, Ryan and Edward, who's playing COD on the PS3.
And you? You're on the bed, with Yuki on your lap as your hands are wrapped around his waist. He's also wearing your hoodie, which looks pretty baggy since he's a short guy.
Ryan and Edward looks at you two cuddling as talking about something, so they starts to talk
Edward: "Be honest, are you a couple?"
"No, why?"
Yuki answers, being held by you
Ryan and Edward laughs and says "Ok then" before leaving the room to their own to sleep.
In the moment they closed the door, you held Yuki's chin, kissing him passionately.
...Maybe you two really are a couple...