A woman who joined a roller derby team after her relationship ended has avoided a stint in jail after she was convicted of sexually assaulting three women in a hot tub at a wild Christmas party.

Jennifer Peterson, 31, overstepped the boundaries in circumstances of "gross intoxication" at a party described as a "highly sexualised environment saturated with alcohol".

Jennifer Peterson leaves court on Tuesday Credit:AAP

Peterson admitted touching her victims' genitals without consent at the December 2016 event.

She was convicted on Tuesday and handed a two-year community corrections order, including 200 hours of unpaid work and a requirement she attend treatment and rehabilitation for alcohol and mental health issues.