There's always something hot about seeing two guys together. However, when the guys are supposed to be brothers, it skirts the fine line between hot and forbidden. That's the case with these Code Geass pics featuring Lelouch and younger brother Rollo.
I don't know exactly where these pics come from but I do know that they were done by Sakou Yukie. She was an animator on Code Geass and illustrated many pieces of official art for the series. So, I'm considering these official until I hear anything less. Besides, if that picture of Lelouch and his mother is official, these could be too.
Image Archive (.zip): RS or MF