The Hunger Games star, who began dating Hoult after meeting him on X-Men: First Class, explained that she just loves spending time with him.
"[He's] honestly my best friend, and hopefully I'm his best friend too," she told Elle. "He's my favourite person to be around and makes me laugh harder than anybody."
Lawrence continued: "We can eat Cheetos and watch beach volleyball and we turn into two perverted Homer Simpsons, like, 'Oh, she's got a nice ass'. I never thought we'd have such different opinions on asses."
The actress also suggested that she has no plans to buy a big house just yet, saying: "Ten million dollars and I'm still living in my parents' condo.
"I've always lived in a tiny rat-infested apartment in New York, or a little condo in LA, or a normal house in Kentucky. I think it would be very bizarre to live in a big mansion by myself."
Lawrence recently suggested that Hoult "has absolutely no idea how good-looking he is".