A Zumba instructor convicted of running a prostitution business out of a dance studio testified briefly Monday at the first trial for one of the operation’s alleged clients. Convicted prostitute Alexis Wright identified former Kennebunk High School hockey coach Donald Hill in the courtroom, but was not required to answer further questions. Defense lawyer Gary Prolman told jurors that Hill, 53, has said he thought he was in a relationship with Wright and he never paid her for sex. Hill is one of 68 people charged with paying for sex with Wright, who’s serving a 10-month sentence. At least 58 have pleaded guilty or no contest. Hill faces a single count of engaging a prostitute, a misdemeanor. He faces a fine of up to $1,000 if convicted.