Russell Brand has made Katy Perry "naughtier".

Katy Perry has admitted that boyfriend Russell Brand has brought out her naughtier side.

Before presenting MTV Europe Music Awards (EMAs) on November 5, the 'I Kissed A Girl' singer had promised to flash her flesh, reports Contactmusic.

She had said, "I will be especially naughty under Russell's influence. I've worn things recently that aren't appropriate for this - sorry mom, sorry dad."

Katy had also added that she won't be concerned if she exposes her breasts in any of her revealing outfits in Berlin.

She added, "MTV asked me back because I have this no fear attitude. I don't care if I do fall over or if a boob does fall out.

"I've gone for less costume changes this year but less clothing too. It's all a bit naughtier, with lace, crystals and lots of boobie things. It's sexy. I'm highlighting what God gave me - what mama made."