NAPANEE Ont. - David Frost held such sway over his teenage hockey players that he masterminded threesomes with their girlfriends, court heard Monday while his lawyer shot back that group sex is pervasive in the sport and cautioned that "hockey is not on trial."

The competing accounts of alleged group sex during Frost's watch over the junior A Quinte Hawks came during closing arguments at his sexual exploitation trial.

The Crown's story is one of Frost at the helm of a "cult" in which he directed and participated in numerous threesomes with players and their 16-year-old girlfriends.

The defence said that never happened, adding that sex involving, three, four or even five people happens in hockey and wasn't unique to the Hawks, the now defunct team Frost coached in eastern Ontario in the 1990s.

Frost has pleaded not guilty to four counts of sexual exploitation involving two of his former players. Two of the counts allege Frost directly or indirectly sexually touched the players, while the other two allege Frost directed the players to sexually touch their girlfriends.

"My task is to be satisfied beyond a reasonable doubt that these offences have been proven," said Justice Geoff Griffin, who is scheduled to deliver his verdict Nov. 28.

Lawyer Marie Henein, who forwarded the argument that group sex is commonplace among players, told the court that "hockey is not on trial."

"(Group sex) may not be a good thing, it may not be a nice thing ... but it's a thing and Mr. Frost didn't invent it."

The allegations against Frost arose out of collusion between the two women who testified that, as teens, they participated in group sex with Frost and the alleged victims, Henein argued.

Last week, the two alleged male victims testified for the defence that Frost never took part in, or directed, their sex acts.

The Crown argues the men, who cannot be named, had been mentored by Frost from a young age and were still motivated by a strong bond and loyalty to their former coach.

The Canadian Press is also not identifying the two women who testified about having sex with players and Frost during the period of the alleged offences, when they were juveniles, though the women are not part of the same publication ban.

One of the alleged victims also denied the testimony of other former teammates, who described various incidents in which they said Frost physically assaulted his players.

"This evidence cannot believed, it should not be believed," Crown attorney Sandy Tse said during closing arguments. "(They're) attempting to remove Mr. Frost from any conduct that would speak ill of him."

Conversely, the women's testimony was truthful, Tse said.

One woman, who dated a player on and off for six years, told the court that Frost so controlled her boyfriend that he had to ask Frost's permission before having sex with her, even after the player moved to the United States.

"You don't make up stuff like this," Tse said. "These are the details of truth."

Frost's lawyer said the women did in fact make up much of their testimony and, by their own accounts, are friends who shared intimate details and have discussed the case.

She suggested the women, as 16-year-old girls, were not as naive as the Crown suggested and instead were game to try out new sexual activities.

"I truly wish that we lived in a `Leave It to Beaver' world," she said. "(But) teenagers are not eight- or nine- or 10-year-old children."

Frost could not possibly have exerted the level of control described in the Crown's case, she said, calling it "stuff of movies of the week" and a "fanciful theory of control, a speculative one that has been spun out of media stories."

"The notion that Mr. Frost is orchestrating and controlling these kids in all kinds of sexual activity is not borne out by (one woman's) evidence," Henein said.

"She remembers events that objectively never could have happened," she said, referring to inconsistencies between the woman's testimony and statements to police.

Monday's court proceedings began with a doctor testifying that Frost developed a hematoma, or pooling of blood, about the size of a plum in the groin area following a hernia operation in 1994.

One of the women, who was questioned about the growth last week, testified that during her years of alleged sexual acts with Frost she never noticed it.

While the defence suggested the hematoma would be hard to miss, Tse suggested it was only obvious to the doctor because he was looking for it.

The doctor conceded the area is obscured and the blood sac would be more or less obvious depending on the position of the body, Tse added.