Josh Hutcherson finds it weird to kiss Jennifer Lawrence.

The Hunger Games hunk gets the giggles when he has to switch on the romance for love scenes with the Oscar-winning actress - who plays fearless competitor Katniss Everdeen in the fantasy franchise - because they are such good friends in real life.

"It is. There are times when we've had to cut because we can't get through a take without laughing," he told Glamour when asked if it's strange to have to seduce his pal Jennifer.

The 20-year-old actor fell for his own girlfriend, actress Claudia Traisac, while filming upcoming thriller Paradise Lost and he thinks it's natural to develop feelings for your co-stars: "As far as I'm concerned, you're both actors, you understand each other's lifestyle, so it's a very natural thing to have happen."