Jennifer Lawrence pees in sinks.

The 25-year-old actress has admitted she will often opt to urinate in bathroom basins when she's out with her pals so she doesn't have to wait around to use the toilet.

Speaking to MTV News during a Q&A with her 'Hunger Games' co-stars Liam Hemsworth and Josh Hutcherson, she said with confidence: ''I've peed in some sinks. When two girls go into a bathroom, someone's gotta take sink. I actually like taking a sink. One could wait, but if the one waiting is me, she's going to the sink.''

And the unhygienic revelations didn't stop there as the blonde beauty later revealed she rarely washes her hands after she's used the restroom either.

She said: ''I don't wash my hands after I go to the bathroom.''

Liam, 25, added with a shudder: ''And then she likes to put her hands over your face.''

Jennifer then went on to dish the dirt on her fellow co-stars as she revealed Josh, 22, makes ''spit bubbles'' and cracks his neck when he's deep in thought.

Asked if they have any bad habits, she blurted out without hesitation: ''Josh, with the cricking of his neck and he does spit bubbles when he's thinking.''