A groom and two friends accused of raping a young woman during a buck's weekend trip to Melbourne have been found not guilty by a jury.

Desandren Pillay, 27, and co-accused Walter Toganivalu, 26, and Fereti Dansey, 27, were each acquitted of two counts of rape on Wednesday afternoon in the County Court.

The trial began last month and was told Mr Pillay and a group of his friends came to Melbourne from Sydney on a buck's weekend in August 2010.

The jury was told one of the group had consensual sex with the woman in a hotel room on St Kilda Road after they met in the Decca Bar in the CBD.

The woman, who had been out celebrating her 18th birthday with her sister and cousin, claimed Pillay, Toganivalu and Dansey then came into the room, after their friend left, and raped her vaginally and orally.

The jury was told the three men did not deny sexual activity took place, but claimed that everything that happened in the room was consensual.

The jury began deliberations on Tuesday and reached its verdict on Wednesday.

The men cried with relief when they were acquitted.