The 'All About Tonight' singer says she has no desire to experiment with illegal substances and just wants to concentrate on having fun when she goes out with her friends.
She told LOOK magazine: ''I'm not going to pretend I'm some crazy reckless person. I'm just a normal 21-year-old, who likes to go out and have fun.
''People say it's easy to get into drugs in this industry, but I don't think that's the case. Every kid sees it
growing up but I think if I was going to do it, I would have by now. All my friends are the same as me.''
Pixie also revealed she has no plans to marry boyfriend Oliver Cheshire in the near future even though she's very happy with him.
She said: ''I don't know if he's 'The One', we're so young. We've been together for a year-and-a-half, which isn't that long in the grand scheme of things, but it is for me. It's the longest I've ever been with someone.''