Credit: Jeff Lipsky

Kristen Bell, star of the House of Lies and the upcoming Farrelly brothers comedy Movie 43, graces the April cover of Women’s Health and opens up about going vegan, her co-star’s butt, and what it’s like to work with her fiancé Dax Shepard on their upcoming movie, Outrun.

Also, director Jason Russell who directed the much talked about ‘Kony 2012′,  which chronicles the horrors happening in Uganda,  just credited Bell with helping spread the word globally.

Here are some highlights:

Kristen on butts…

“My favorite things on the planet. I want two round cupcakes, always. I kicked my buns and abs sets into high gear when I knew I’d have to be in my bra and underwear on House of Lies. But I don’t show my crack! All the Mr. Skins of the world are like, “ooh, Kristen gets naked!’ I’m like, ‘Dream on!’”

Kristen on her House of Lies co-star Don Cheadle’s butt…

“If you had those beautiful chocolate bun-cakes, you’d show’em too, let’s be honest.”                         

Kristen on working with fiancé, Dax Shepard on their upcoming movie Outrun….

“I would watch him walk back to the monitor and yell things such as ‘Action!’ or ‘Cut!’ and I’d just go, ‘And you expect me to work when you’re doing cute things around me all day? How am I supposed to focus?

Kristen on fiancé Dax Shepard’s cooking…

He makes this delicious spaghetti dish… about twice a year. I wish he cooked more.[Actually] I don’t wish he cooked more. He’s a very good cook, but I’m quite territorial in the kitchen. It’s like, if I went outside and fixed the car, he’d be like, ‘Whaaat?’”

Kristen on vegan food…

“[It’s] fart powder. [It] makes you gassy.”

 Kristen on her and fiancé Dax Shepard’s best friends…

“We decided to create the first four-way marriage, where our couple has married their couple.”

 Kristen on her relationship with fiancé Dax…

“We nauseate ourselves with how mushy we are.”

Kristen on swearing…“I have a potty mouth. I’m not afraid to drop an F-bomb. I can love organic tomatoes and swearing – the two aren’t mutually exclusive.”

Kristen on toilet humor…

“It’s funny—that’s how I like it.”

Kristen on famous quotes…

“I love quotes! I cannot speak for myself!”