Jo Se Ho and FIESTAR's Cao Lu hit the gym on the May 21 installment of 'We Got Married'.

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Jo Se Ho seems to have finally taken Cao Lu's advice to diet and exercise. The comedian expressed he's dieting lately and bragged about gaining muscle. At the gym, Jo Se Ho also went a little overboard, trying to impress Cao Lu.

He said during his solo interview, "I thought my legs were going to break. Still, I think Cao Lu was impressed." On the other hand, Cao Lu revealed, "It was unnecessary pride. He could've gotten hurt. He's mistaken if he thinks it's impressive to carry something heavy."

When it came to couple exercises, the FIESTAR member was definitely shy, saying that it was hard to make eye contact.

Do you think Jo Se Ho is starting to make Cao Lu a little nervous?