'Teen Mom 3' star Katie Yeager has a worse headache than a crying baby to deal with right now. The reality starlet is facing a potentially humiliating leak of naked pictures.

Radar Online reports that Yeager, 19, took a slew of naked selfies and sent them to an ex. Turns out, the guy is an ex for a reason -- because he attempted to sell them to Radar.

According to Radar, the pics range from vain (showing off a tattoo in front of a mirror) to super raunchy (playing with a sex toy).

Yeager gave birth to daughter Molli J. Maes (by supportive father Joey Maes) when she was 17; Radar notes that Yeager was of age when the photos were taken and sent. The anonymous ex told the site, "The photos were sexted to me… she loved to send messages, all the time."

The otherwise wise beyond her years Yeager recently praised the 'Teen Mom' series in an interview, gushing over how beneficial it is for other girls to see how much of a struggle teen parenthood is. "It's controversial, but it's definitely helping young girls to see the consequences of having unprotected sex and having sex too early. And I felt like I want to help."

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