Found an interesting one.
Kind of fluffy and funny, features a hyperactive Nunnaly through too much coffee and a promiscuous Sayako who is forced to give "the talk" to Nunnaly.
Lelouch and C.C are there, but exausted and go to sleep.... problem is an enlightened Nunnaly picks up the conversation through the door they have the wrong way.....
Link here, short but good