Invision/AP 1 / 4

Ignore what they say about dating a co-worker.

Jennifer Love Hewitt tells she and her Ghost Whisperer costar Jamie Kennedy have no problem mixing business with pleasure.

"We actually work well together, so it's nice," she tells Us.

See other celebs who formed on-set romances

"We both get really tired at work," she adds. "We try to be forgiving that we work really hard."

See how Jennifer Love Hewitt's body has changed over the years

Says Kennedy, "I'm her biggest fan, and she's my biggest supporter."

See Hollywood's most romantic couples

Their favorite thing to do when they're not working?

"We like to go to new restaurant," she tells Us.

Adds Kennedy, "We eat out all the time - it is kind of true."