When you fuck a lady up the vagina for a bit whilst fingering her arsehole so that you can later secretly slip your dick out and shove your massive erection right up her arse.
I just doublebanged Elaine and she noticed and screamed for me to stop.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi