Jennifer Lawrence tried peeing standing up when she was younger.

The 'Hunger Games' actress saw one of her brothers using the toilet when she was younger and decided to copy him when she next went to the bathroom, only to find it wasn't the same.

She said: ''I saw my brother peeing standing up and I was like 'Oh ... That doesn't work the same'. That surprisingly we weren't expected to talk about tonight.''

The 23-year-old beauty admitted her two brothers feel bad when she recalls the pranks they pulled on her in the past, but she thinks they deserve to feel guilty and embarrassed because of what they put her through.

On 'Late Night With Seth Meyers', the show's host asked: ''It does seem like they were hard on you growing up, you've been talking about that, how'd they feel about the fact you always talk about it.''

She responded: ''I don't really care, genuinely, because it's karma, I was the little sister, there was nothing I could do. They threw me down stairs, I thought I was going to die, everyday, and then I turned out to be famous and talked about it on talk shows, that's perfect karma.''

Jennifer also hinted she'd promised her brothers they were able to pick one particular prank each that she wouldn't reveal they pulled.

Seth asked: ''Is it true they each have one thing they did to you that you're not allowed to talk about?''

The blonde beauty replied: ''I'm not really slowed to say if that happened or if it did not happen. There could be a scenario where my family told me there are certain stories that I'm not allowed to tell.''

Giggling, she added: ''There's obviously a statue of limitations.''