They appear to always have an unbelievably happy and carefree marriage, but in the newest episode of Donnie Loves Jenny, Donnie Wahlberg and Jenny McCarthy may prove to be like most normal couples and have some disagreements.

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In a preview clip for the new episode, titled All About That Bass, McCarthy seems pretty intent on her husband going in for a particularly uncomfortable exam at the doctor-and Wahlberg has no desire to do it.

"If you have a family history, you've got to get your man in a proctologist's office," she says in the clip as she does her radio show.

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However, Wahlberg is less than enthused about her demands-because he isn't comfortable with the idea of how the exam is done.

"I'm not getting a camera up my...," he says in the clip before the camera cuts him off.

However, his denials won't keep his wife from still trying to convince him to do what she asks, as she will then warn him that something else will check him out if he doesn't head to the doctor's office.

" If you don't want to go to the doctor, then you're gonna have to deal with these," McCarthy says in the clip as she holds up her hands and wags her fingers.

Wahlberg then may feel genuinely like he should see a doctor-because the idea of his wife examining him crosses some major boundaries for him.

"Don't go there," he says in the clip.

Donnie Loves Jenny airs Wednesdays at 10 p.m. on A&E.

Tags: jenny mccarthy Donnie Wahlberg