2011 Playboy Playmate of the year, Claire Sinclair, has filed a restraining order against the 21-year-old son of Playboy founder Hugh Hefner. Police responded to the apartment that Sinclair shares with Marston Hefner following a domestic violence call. After discovering injuries on the Playmate, the younger Hefner was arrested. No word on if he has hired a domestic violence attorney, however Hefner has posted $20,000 bail.

The police report alleges that the young Hefner punched and kicked Sinclair and refused to let her leave the apartment. Sinclair filed for an emergency restraining order against Hefner on Monday morning with the Pasadena police department.

Domestic violence is considered a wobbler in California, meaning it can be charged as either a misdemeanor or a felony. Because the police report states visible bruising and red marks on Sinclair, there is a distinct possibility that Hefner could be charged with a felony.

If convicted, Hefner could face anything from probation up to a year in jail, as well as be ordered to complete a 52 week anger management course. However, it seems highly unlikely that Hefner would receive the maximum penalty.

In the much publicized domestic violence case between pop singers Chris Brown and Rihanna, Brown was sentenced to 5 years of probation, 1400 hours of community service and a restraining order was issued against him that runs through 2014. An investigation into the Brown case showed a history of domestic violence.

Details of the Hefner investigation are still murky, but as of right now, this appears to be a first time offense. Unless new evidence emerges, it is unlikely that Hefner would face any jail time for this incident.