Judging by our cell phone bill, I thought my two teenage stepdaughters were text messaging queens. But I was wrong.

A 15-year-old girl from Des Moines, Iowa, was crowned the text messaging champion Tuesday after winning the LG U.S. National Texting Championship. (Yes, there is such a thing.)

The Iowa girl sends more than 14,000 texts a month, but this contest included texting while blindfolded and texting while maneuvering through a moving obstacle course.

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