Hugh Hefner's son arrested, charged with attacking Playmate Claire Sinclair

Marston Hefner, son of Playboy founder Hugh Hefner, was arrested Sunday (Feb. 12) after he allegedly attacked his Playmate of the Year girlfriend Claire Sinclair. He was charged with misdemeanor domestic violence and released on $20,000 bail.

TMZ is reporting that police in Pasadena, CA were called to the house that Marston and Sinclair share after one of the Playmate's relatives called 911. The publication says that when police arrived, they saw visible injuries on Sinclair including bruises and red marks.

Sources say that Hefner, 21, allegedly punched Sinclair, kicked her and refused to let her leave the home. Sinclair apparently called her family to tell them what happened. They then called the police.

Sinclair, 20, was named Playmate of the Year in 2011. She has been dating Marston on-and-off since August 2010.