Seamus jerked slightly when he felt someone smack him on the arse. For a moment he thought that Alicia might have done it, but when he turned around he saw Ginny there instead.
He smirked at her and threw a chip at her before poking out his tongue.
"Don't touch me arse. Neville's grown a lot since school. I don't fancy gettin' smacked. By him, of course, not you." He winked at her and then grabbed a glass, mixing (quite well) Ginny's favorite drink.
"Sex on the Beach for the lovely Ginny. Drink that and then you get your Guiness. Remember, liquor before beer you're in the clear."