A Springfield martial arts instructor propositioned two girls at his successful studio: If you want to improve your Tae Kwon Do, have sex with me, Fairfax police alleged in a search warrant.

Quiyen Vinh Phan Le (Courtesy Fairfax County Police)

Le, of the 6000 block of Larkspur Drive in Springfield, was arraigned Tuesday on seven felony charges of taking indecent liberties with minors and possessing child pornography, Fairfax County police said.

One of the victims tipped police to Le last year and the second victim was discovered during the course of the investigation, police said.

The alleged abuse of the first victim occurred between May 2003 and January 2005, and Le had inappropriate sexual contact with the second victim in late 2008, police said.

No other victims have been discovered at this point, police said.

The first victim began taking Tae Kwon Do lessons from Le when she was 10 or 11 years old, according to a search warrant. By 15, the girl was training almost everyday at Le’s school and he told her he was attracted to her and she had grown up quite a bit, according to the search warrant.

Le was able to convince the girl that a sexual relationship would help her achieve her goals as a martial artist, according to the search warrant. The girl had sex with Le from the time she was 16, until adulthood, the search warrant says.

Le allegedly began the relationship with the second victim in 2007, according to the search warrant.

Le was able to persuade both girls that he was the key to their Olympic aspirations, according to the search warrant. He also instilled a traditional value system, which placed emphasis on obedience to the Tae Kwon Do master, according to the search warrant.

The girls were expected to bring Le food and do side jobs around the school, according to the search warrant.

Le also wrote romantic notes to the girls, including one where he refers to himself as “Professor Phan.” He also exchanged photos and videos, according to the search warrant.

A biography of Le on the Web site for Phan University of Martial Arts says Le grew up in Vietnam and immigrated to the United States during the Vietnam War. It says he has been an instructor in the Burke and Springfield area for over 15 years.

It was not immediately clear if Le has a lawyer.