The 19-year-old woman accusing NBA star Kobe Bryant (search) of rape (search) slipped into the courthouse through a fire exit Monday to appear in court for only the second time since the case began.

Pretrial hearings were closed all day, so it was impossible to determine why she made the surprise appearance. The woman's attorney was with her.

The woman was questioned for more than three hours during a March 24 hearing. Bryant's attorneys want details of her sex life — especially in the three days surrounding her June 30 encounter with Bryant — admitted as evidence to suggest she was injured by someone else.

The hearing on the relevance of the sexual history has been going on for days. It resumed Monday, along with arguments on a separate defense motion to introduce evidence about the woman's mental health, two purported suicide attempts last spring and any evidence about alcohol or drug use.

Bryant, 25, has said he had consensual sex with the woman last summer at the Vail-area resort where she worked. If convicted of felony sexual assault, the Los Angeles Lakers (search) star would face four years to life in prison or 20 years to life on probation.

Evidence from underwear the woman wore to a hospital examination did not match Bryant. Her attorney has denied she had sex with anyone after Bryant and before she reported the encounter to police.

Prosecutors say her sex life is irrelevant in determining whether she was raped.

Colorado's rape-shield law generally bars defense attorneys from using an alleged victim's sex life as evidence, but there are exceptions.

Bryant will formally enter a plea during this week's three-day hearing. A trial must be set within six months of a plea, though Bryant can waive that right.

The Lakers are in the middle of a playoff series with San Antonio. Bryant is expected to fly to Los Angeles for a Tuesday night game, then return to Eagle for the final day of the hearing.