Cheeky
Keith pinches his eyes shut, slamming the book down again and swiveling to face Lance. “Oh my god,” he groans, standing up and crossing the two feet between them before Lance can get out a word. He grabs Lance’s face between his hands (perhaps a bit rougher than needed, but hey, he’s always wanted to slap Lance’s stupid face) and the last thing he sees is an expression of pure surprise before he leans down and presses his lips against Lance's.
It’s a peck, and it lasts a second, and then it’s over. Keith leans back, releasing Lance’s face, and hisses, “There.”