7. Crimson Dragon (Ruby/Ren)
It was Jaune and Pyrrha's wedding, but the atmosphere felt more like a college bar, at least to Ren. Everyone was drunk, the music was too loud, and at least half of the people there were making out with someone.
Ren was too shy to make out with a stranger, even after five beers and a couple shots, and Ruby shared similar inhibitions, even after her three vodka cranberries.
But they weren't strangers, they'd known each other for years.
Even the most platonic relationships can become sexual, given the right circumstances.
Mutual drunkenness would certainly suffice, at least until morning.