An Edmonton-area hockey prospect was placed under house arrest Monday after admitting he tried to extort sexual favours from a teen girl using surreptitious sex videos he shot with his cellphone.

Drew Bish, 19, was handed a one-year conditional sentence to be served in the community, followed by 12 months of probation, after pleading guilty in Court of Queen's Bench to charges of voyeurism, extortion and distribution of intimate images.

Bish, who is listed on the Elite hockey prospects website, played the last two seasons with the Killam Wheat Kings in the North Eastern Alberta Junior B Hockey League. He was named rookie of the year in his first season and led the league in assists and penalties in his second campaign with the team.

Crown prosecutor Craig Krieger told court Bish attended a teen party near Camrose in March 2015 and barged into a bedroom on two occasions and used his cellphone to record short videos of a 17-year-old girl engaging in sex with two different boys.

Krieger said Bish later approached the girl at the party and asked her to have sex with him. After she refused, he demanded she comply and threatened to distribute the sex videos if she didn't. However, the girl again said no.

Krieger said Bish showed the videos to friends the following day, but did not distribute copies of them.

Court heard the girl later went to police and Bish was charged after confessing to what he had done.

In a victim impact statement, the girl said she felt degraded by the incident and required psychological counselling.

Krieger said it was aggravating that three victims were violated and it had escalated to an extortion bid, but conceded a mitigating factor was no planning was involved and Bish took responsibility.

"It was a really dumb idea, but with potentially serious consequences," said Krieger.

Defence lawyer Danielle Boisvert told court Bish had only turned 18 a few months before the party and had no prior criminal record.

Boisvert called the incident "an unfortunate and ill-thought-out night," and pointed out Bish did not pursue the girl after she said no and he never distributed the videos online.

Boisvert told court Bish plans to go to NAIT to become an electrician and said the college has been scouting him.

Justice Mary Moreau called the offences a "serious invasion of privacy and dignity of three persons who were all under 18" and noted the girl was "most vulnerable" at the time.

Bish was placed under house arrest for the first six months of the sentence and told to take counselling as directed. Moreau also ordered him to have no contact with the victims.

"You've done enough harm and they deserve to be in peace," she said.