The chart-topping singer - who is set to wed vegetarian British comedian Russell Brand later this year - is planning an album about meat after singing about fruit, sweets and cakes on her previous LPs.
She said: "My new record `Teenage Dream` is more about confectionary and candy and baked goods. There`s less fruit imagery.
"For my next album I`d like it to be about meat and I want to be on the cover wearing a bacon bikini. Also I want my records to smell of sausage or pork. CDs are over, but not if they smell original."
The `California Gurls` hitmaker admitted she thinks her former self - who released a gospel album in 2001 - would "flip" if she heard some of the lyrics on her current tracks.
She added to Q magazine: "She`d probably flip. I`d have to give her a hug and calm her down. There`s a lot about me she wouldn`t understand. She might be a bit scared of what I`ve become. She might not like the dress or the heels.
"She might blush at the song `Peacock` - it`s about a d**k. But then there is a very questioning track on the album called `Who Am I Living For?` which she would relate to."