You and Five were both enemies. You got into physical fights a lot, and who won varied. But fighting with him was starting to get boring for you, so, instead of attacking him physically, you decide to attack him..emotionally.

“Hey Five! Get over here!” You shout. Five rolls his eyes and walks over.

“What now you insufferable-” Before he can finish you kiss him on the lips and walk away. Five is flustered. “N-now wait just a second-!”