Lelouch returns to school to keep up his cover. He discovers that his body double has been managing things for him in his absence in an unexpected manner.
He's become a bit of a playboy.
How, the _actual_ kissing Lelouch count is: C.C. 2, everyone else 0.
But as far as Shirley is concerned, she's been kissed by Lelouch.
And she gets real mad when she finds out how many other girls he's been dating.
(There's a waiting list.)
Oh yeah, and the other Knights of the Round have enrolled in the school.