Hugh Hefner's son, Marston Hefner, has been charged with assaulting his girlfriend.

Marston was arrested earlier this month after allegedly attacking Playmate of the Year Claire Sinclair inside the couple's apartment and now he faces over a year in a jail after being charged with inflicting corporal injury on a spouse or cohabitant.

According to TMZ.com, Marston is also facing punishment for vandalism after he allegedly damaged Claire's laptop during the heated argument.

Marston, 21, has previously confessed growing up as the son of Playboy magazine founder Hugh - who is known for dating hundreds of beautiful women - did have its problems.

He said: ''Well, as a 15-year-old kid, seeing naked people occasionally - it's just the lifestyle of growing up as Hugh Hefner's son, in his shadow. It's not a boo-hoo sob story. But it's not the same as every other kid.''

The media mogul's other son Cooper, 20, has also previously admitted it is strange when his octogenarian father has girlfriends who are younger than him.

He said: ''The Playboy Mansion is home. I've never known anything else, so to me it's normal - as ridiculous as that sounds.

''Although it is a little weird now that some of dad's girlfriends are actually younger than me.''