X-Men: First Class co-stars Jennifer Lawrence and Nicholas Hoult make the perfect couple, according to the pair's mutual pal Zoe Kravitz.

All three met on the set of the 2011 action movie - and Hoult and Lawrence hit it off immediately.

Now, Kravitz tells Rolling Stone magazine it was inevitable the two young stars would fall in love.

She says, "They complement each other in the most amazing way - she's crazy and impulsive, but he keeps her grounded. And she keeps him on her toes."