MJ's 13-Year-Old Daughter -- Recruited by Lingerie Football League

Michael Jackson's 13-year-old football playing daughter is being recruited to be the face of an organization that swears it's helping break down barriers for women ... problem is, it's the Lingerie Football League.

TMZ has learned ... the LFL took notice when Paris Jackson became the first female in her L.A. private school to join the flag football team earlier this month ... and fired off a letter to the MJ Estate in the hopes PJ would be the spokesperson for the league's "youth program."

In the letter, obtained by TMZ, LFL Commissioner Mitchell S. Mortaza acknowledges a "lack of options for competitive female football" ... and says the league will "be introducing youth clinics across the country to introduce the game of football to young ladies at an earlier stage in life."

Mortaza adds, "We ... would like to invite Paris to become the spokesperson for the LFL's youth program and perhaps start training for a future football career in the LFL when she reaches the age of 18."

LFL officials tell us no one in the youth program will wear lingerie.

Mitchell makes a good point about the lack of football options for girls, but is a league that parades adult women around in their underwear really the right fit for mentoring KIDS????

We gotta ask ...