Stu is hosting a house party, but as he's doing the rounds chatting to people (mostly bothering them) and handing out beers he sees you alone on the roof.

"Hey!" He sticks his head out the window, a dopey grin on his face as he looks you up and down. "What'cha doing?" Before you can stop him he's crawled through the window to join you, tipsily slipping on the tiles as he sits beside you.

"Alone, huh?" He nudges you playfully. "You're uh.... umm.." He mumbles, forgetting your name.