In a major victory for Kobe Bryant’s defense, the 19-year-old Colorado hotel worker who says he raped her will be grilled about her sex life.

Judge Terry Ruckriegle also rejected prosecutors’ request to limit what the defense can ask the accuser at a closed hearing later this month.

Prosecutors in Eagle County, Colo., said they will appeal to the state Supreme Court.

“It is about rape shield issues,” said Krista Flannigan, a spokeswoman for the prosecutors, referring to the Colorado law that makes a rape victim’s sexual history off limits – unless a judge decides it is relevant to the case.

Ruckriegle’s ruling came after the woman’s lawyer denied defense claims that the accuser had sex with another man the morning after the alleged rape.

The woman has acknowledged having had sex just two days before the alleged attack.

Lawyers for the 25-year-old L.A. Lakers star subpoenaed the woman hoping to convince the judge that her injuries could have been caused by sex with someone other than Bryant – and that this testimony should be allowed at trial.

Bryant’s team is also trying to prove the woman had a “plan” to sleep with the NBA star to make ex-boyfriend Matt Herr jealous, and that she also had sex with another prosecution witnesses, bellboy Bobby Pietrack.

Buoyed by the judge’s ruling, the normally stone-faced Bryant smiled and waved to a group of cheering children as he left the courthouse after the two-day hearing.

Bryant has admitted he had sex with his accuser June 1 at the Vail-area resort where she worked but insists it was consensual. He faces a maximum of four years to life in prison if convicted of rape.