Bad Kitty! Please click cat/kitten programming for extensive posts on other media sex-kittens (obviously Katy Perry's posts are full of it, click label [start at beginning]); turning all their little 'kiddy' fans into 'kitty' fans (they've always been used in this way; see Britney and co).
Katy's obsession with fruits is entirely innocent, all the banana's, cherries, strawberries etc (not to mention the wieners!) have nothing to do with sex! These last few are from her performance at the Grammys by the way, the leopard/tail/ears one from a performance at the Marquee Theatre on January 3rd, the first giant cat head one from the Wiltern Theatre in LA on January 31st, the second giant cat head is from the Filmore Theatre in San Francisco January 28th.
Edit: Uh Oh, Paris Hilton's 'ex' Benji Madden was ensnaring Katy on Valentines Day, earlier that night (I think) she was dressed up in zebra-print.
[Below image included for Katy reflection on triangular prism + the fat dude's T-Shirt says a lot!]