Everyone knows that going on the Howard Stern Show means getting asked some deep questions.  Adam Levine dropped by this week and was asked about his relationship and Christina Aguilera's weight.

Howard Stern began by asking Adam Levine why Christina Aguilera has gotten “so fat” and called her “plus size”.  Although Levine seemed uncomfortable, he answered some questions.

“This is a sensitive subject for women, but why do you think she’s gotten so heavy?” Stern asked Levine. “Is she upset? … She used to be so f***ing hot … And her clothes are too tight, right?”

“Her clothes are tight. She likes to wear tight clothes,"  careful with his response Levine said. “She clearly likes to talk about being comfortable with being a woman and snapping her fingers and doing the whole thing.”

Howard pushed even further saying, “Yeah, but when you’re a plus-size woman, you can’t wear the tight clothes anymore.”

“I wouldn’t go that far, actually,” Levine said.

When asked what size Aguilera is, the “Voice” coach wisely responded, “I’m keeping my f***ing mouth shut.”

Stern then went on to question the Maroon 5 singer about his girlfriend and their relationship.

Adam has been proudly dating Victoria’s Secret model Anne Vyalitsyna, 25, for two years now.

“This is the longest, most functional relationship I’ve ever been in,” he told Howard on his show. “I don’t want to screw it up.”

Anna joined the conversation to share how they met.  The two met when Maroon 5 was hired to play at a party for the Sports Illustrated Swimsuit Edition.

“He thought I was a stuck-up b**** and I kind of thought he was a d***bag musician,” she explained.

But after getting drinks, they realized they got along.

Now, Adam and Anne are as close as a couple can get. At least, we hope so since they’re not exactly being very safe with their birth control.

Adam then revealed to Stern he uses “a fool-proof birth-control system,” the pull-out method.

“I didn’t start a band to get girls,” Adam said with a laugh. “I stayed in the band to get girls.”.

Here is a clip of the interview.

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