Reese Witherspoon: Rob Pattinson Is 'So Good Looking!'

Count Reese Witherspoon as part of Robert Pattinson‘s fan club!

“I am so lucky. He’s so amazing and wonderful and sweet and just the nicest guy too, so you can just add that to the soup,” the 34-year-old actress told ET about her Water for Elephants co-star.

WATCH: Water for Elephants Trailer

“I mean, he’s just so good looking and he’s a really nice person,” she added.

The two haven’t filmed their love scenes yet but Reese predicts they’ll “probably just laugh the whole time, because all we do is just laugh and joke around,” she shared.

Fun fact: Rob played Reese‘s son in 2004′s Vanity Fair, even though she’s only 10 years older than he is!