Daily Mail: Zumba is that popular fitness craze with women. It combines dance & aerobics.

So something HAD to be up when tons of MEN flocked to the Pure Vida Zumba studio in Kennebunk, Maine.  And there was.

It turns out the Zumba instructor and owner of Pure Vida had secretly turned her workout studio into a BROTHEL, and was HAVING SEX with men for money.

29-year-old Alexis Wright of Wells, Maine was arrested after an investigation into 106 counts of prostitution.  She was also arrested for tax evasion and for violation of privacy . . . because she was secretly VIDEOTAPING all the sex.

Alexis allegedly made more than $150,000 from her prostitution work . . . which is probably more than she made teaching Zumba.  So far none of her clients have been charged, although that could be coming.

Alexis was indicted by a grand jury last week, and could be facing at least 25 years in prison.