Kim Kardashian & Kanye West: Serafina Lunch!

Kim Kardashian and boyfriend Kanye West lunch at NYC’s Serafina restaurant and then shop at FAO Schwarz on Thursday afternoon (April 5).

“This is just the beginning of a new dating relationship,” an insider tells Just Jared. “It’s very casual.”

PHOTOS: Check out the latest pics of Kim Kardashian

In Kanye‘s new song “Theraflu,” he admits his feelings for Kim.

“I admit I fell in love with Kim,” Kanye raps. “‘Round the same time she fell in love with him … That’s cool, babygirl, do your thing … Lucky I ain’t had Jay drop him from the team.” (Kanye is referring to Jay-Z who owns the New Jersey Nets, the team estranged husband Kris Humphries plays for.)

Listen to “Theraflu” here!

On Wednesday in NYC, the new couple enjoyed a movie date, reportedly watching The Hunger Games.