You and Harry went on vacation with the Weasleys, all the Weasleys and you were at the Quidditch world cup, you sat next to Ron and Harry, and on the other side Harry, in the match, there was a break, because it was very long, so to pass the time they put on a Kiss Cam, in which couples (or non-couples) were indicated on the Kiss Cam to kiss on screen.

Well the cam went from couple to couple and they kissed..

then it landed on.. Ron and You.

you didn't notice until Ron grabbed your face and kissed you, almost like he was waiting for this in all his 16 years.