lalettricechesogna
Five times Sirius kissed Remus as a joke and one time Remus kissed back.
Just as it is. No angst, just two idiots in love.
6th year at Hogwarts, the Prank happened but it's not directly referenced (apart from one time I think).
Please don't look up the moon phases for those years, I made them up for the sake of the plot.