A Westbrook woman who allowed her boyfriend to sexually assault an underage female relative was found guilty Wednesday after a two-day trial of four of the six counts against her.

Holly Morrison, 34, showed no reaction as the jury foreman read the verdict shortly after 5 p.m. at the Cumberland County Courthouse.

The jury of eight men and four women deliberated for two hours before finding Morrison guilty of one felony count of gross sexual assault and three misdemeanor counts of endangering the welfare of a child. The jury found her not guilty of two additional felony counts of gross sexual assault, which accused Morrison of compelling the child into the sexual conduct.

The 14-year-old victim was the first witness to testify at the trial Tuesday. Morrison’s boyfriend, Donald Cass, who had earlier pleaded guilty, testified Wednesday.

Jurors were also shown a video of a police interview of Morrison by Westbrook Detective Steve Crocker, in which Morrison said she knew what her boyfriend was doing and told him to stop but didn’t think to call police.

“I think the jury did an excellent job,” the prosecutor, Assistant District Attorney Michael Madigan, said. “It would seem clear that they did a good job applying the evidence to their deliberations and delivered an appropriate verdict.”

Madigan had asked Judge Jeffrey Moskowitz to order Morrison held without bail pending a sentencing date, which has yet to be set. Madigan argued that Morrison had moved from her apartment at 110 Brown St., Westbrook, without informing the court and had been offering her personal services on a website commonly used to advertise escort and prostitution services.

The judge, however, rejected Madigan’s argument and allowed Morrison to remain free on $500 cash bail, live with her father and comply with bail conditions that she have no contact with Cass or the victim.

Morrison was accused of watching Cass use objects to assault the girl at least three times last fall, according to court records.

Westbrook police were first alerted by school officials on Nov. 14, after the girl told friends and a counselor that she had been assaulted by Cass multiple times. The girl also told officials that Morrison insisted she get in bed naked with the couple and shower with them, according to a report by Crocker.

Cass, 59, of 57 Towle Ave. in Auburn, was arrested last year and pleaded guilty to two counts of gross sexual assault.

Cass, a former reserve police officer in Auburn, was sentenced on Feb. 24 to serve four years of an eight-year prison sentence, with the balance suspended for a four-year probation term.

Morrison told police she met Cass at a “swingers party” and they participated together in swingers events, according to court records.

Cass, who is married, told police that he visited Morrison’s home on weekends while telling his wife that he was going on hunting or fishing trips, court records state.

Morrison’s attorney, Amanda Doherty, said she conceded in her opening statements that Morrison was guilty of the three misdemeanor counts of child endangerment but that her client had hoped to be acquitted of all three felonies.

“Obviously, my client is disappointed to be convicted of one of the gross sexual assault charges given the more serious implication of those charges,” Doherty said.

Morrison faces up to 30 years in prison on the felony count and up to a year in prison on each of the misdemeanor charges.

Scott Dolan can be reached at 791-6304 or at:

sdolan@pressherald.com

Twitter: @scottddolan