Recently my youngest sisters thing has been to point out all my inappropriate sexual endueno comments, so standing in the kitchen one afternoon whilst her best friend was over, we had a conversation that was rather amusing and this is how it went.
Sister: "we even got a movie"
Me: "oh yeah whats it called?"
Sister: "morning glory"
Me: "well thats inappropriate"
everyone burst into laughter and she went throughly bright red with embarssment