A Queens special education teacher who was busted after videotaping herself in a sex romp with a 15-year-old boy was sentenced today to 90 days in prison.

Christine Williams, 42, was a fifth grader teacher at PS 80 in Jamaica until she was caught in the illicit romp with the kid, a pal of her stepson.

She admitted to Queens Supreme Court Justice Richard Buchter that she had sexual contact — on two occasions in January and February 2010 — with the teen.

Williams’ teacher license was terminated, according the prosecutors.

“She has disgraced herself — the children deserve a better role model,” Judge Buchter said.

Williams pleaded guilty to statutory rape and will have to pay a $1,000 fine, serve 10 years probation, enter a mental health program and register as a sex offender.