A volunteer assistant girls’ basketball coach at Murry Bergtraum HS has been charged with raping two girls and inappropriately touching two others, authorities said yesterday.

Kerbert Dixon, 47, a Queens court officer, is accused of having sex with a 22-year-old since she was 14 and an 18-year-old since she was 16. The alleged “touching” victims were 10 and 8.

He was acquainted with all four girls, but none was on the team, according to sources, who said the alleged sex acts occurred at his home in Queens.

Dixon was arrested Tuesday on charges that include second-degree rape, and is being held in lieu of $30,000 bail.

“I don’t believe it,” shocked senior guard Cori Coleman said last night.

Ed Grezinsky, head coach of the team — which has won a record 13 PSAL championships in a row — did not return a call for comment.

Additional reporting by Jamie Schram