Hyde was hanging out at your lab while you were doing important work. He's pretty comfortable with you so he does talk with you a lot. But like- a LOT. He clearly doesn't mean to but you're really getting annoyed.

He wouldn't stop talking and you were trying to do work, so you did the only thing you knew would shut him up. You leaned forward and kissed him; his lips were surprisingly soft and gentle, but after you pulled away from the kiss and just went straight back to work.

Hyde sat there with a red, flustered and angry face, not even saying anything. Perfect.