The former cricketer for Worcestershire county was allegedly "fired up" by the contest for the men to sleep with the most women before he carried out the rape at his own flat in Portland Street, Worcester, in April 2017, 7News reports.
The presiding Judge, Jim Tindal, criticised the former cricketer and his former teammate for their "pathetic sexist game to collect as many sexual encounters as possible."
Gudge Tindal added: "You probably thought it was laddish behaviour at the time.
"In truth it was foul sexism.
"It demeaned women and trivialised rape - a word you personally threw around lightly.
"Only now do you realise how serious rape is."
Hepburn's barrister Michelle Heeley QC, said her client expressed remorse, according to 7News.
Hepburn told the court that the cricketer drank the equivalent of 20 bottles, and believed he was engaging in consensual sex.
However, the victim told the court that she was sleeping when the encounter occurred, and described her ordeal as "evil" and "heinous crime", according to 7News.
The is a developing story.