What? He's a good kisser.

—Karen Smith

Possible seth mosakowski

A frame from the Halloween party. The male in the hat is headed into the corner where Karen was looking at Seth Moskowski

Seth Mosakowski is an unseen, minor character in Mean Girls.

Seth is the cousin of Karen Smith, and two made out at one point. Later, they both attended Chris Eisel's Halloween Party, at which Karen said to Gretchen Wieners that he was looking fine and said that it's okay that they made out, as he was her 'first' cousin as opposed to her "cousin". Karen later goes on to "explain" to Gretchen that "you have your cousins, then your first cousins, then your second cousins," etc.