These women are sick: lock her up for decades.

Colorado school secretary admitted to sex with boy, 13, multiple times — and now she’s on the run: cops

A Colorado middle school secretary is on the lam after authorities say she sexually abused a 13-year-old student for months – even plying the boy with booze and weed during their predatory sex sessions at a park and a Walmart parking lot.

Police in Greeley have been unable to locate Brenda Meza, 34, since an initial interview in which she told cops about how she groomed and then had sex with the 8th grader from Franklin Middle School, according to an arrest affidavit obtained by The Post.

According to cops, Meza — who also coaches the cross-country team and advises the games club — said she became so infatuated with the boy that she would get jealous if he talked to girls his own age in school.