A lot of people think of consent as being what a man should get from a woman before they have sex, but that's far from the only definition. Women need to get consent from men too if the situation is reversed.

In Katy Perry's case, she really should have gotten consent from the 19-year-old she tricked into kissing her on the air on American Idol. First of all, it's important to establish that Katy is 33 years old.

So here's the story. Benjamin Glaze, a 19-year-old contestant on the show told the judges he never had his first relationship or his first kiss. Katy Perry asked him to kiss her on the cheek and ended up turning her head at the last minute and kissed him on the lips instead.

Katy Perry probably meant well and thought that a 19-year old's teenage dream would be to have Katy Perry as his first kiss, but in Glaze's case, this wasn't true.

After this episode was aired, Glaze told the New York Times he was raised in a conservative family and it made him really uncomfortable. He said he wanted his first kiss to be special and with someone he was dating.

This incident raises a bunch of questions about consent. Sure the traditional definition applies to sex but it certainly applies to kissing too.

Katy Perry, a rich and powerful celebrity, made the decision to kiss a young inexperienced 19- year- old on the air. She also took Glaze totally by surprise which added to the discomfort.

Kissing someone you're way older than and not dating is really strange and something you should assume the other person doesn't want.

A judge on a tv show should also not be kissing a barely legal contestant. Let this incident serve as a reminder that consent is a two-way street and that it's not smart to assume someone wants something if you have no idea if they really do.