Believe it or not, you can catch an STD from a tanning bed . . . although good luck in getting your significant other to buy THAT excuse.

A dermatologist at the Mayo Clinic in Minnesota says it's possible to catch herpes or HPV from a tanning bed . . . because the UV light doesn't kill off all the bacteria that other people leave behind.

The best way to avoid it is by wearing a bathing suit to protect your junk.

Leo and Rebecca talk aboiut it below