Sean Stewart has been charged with assault for allegedly throwing a brick at a married couple.The 26-year-old - the son of rock legend Rod Stewart - was taken to a Hollywood police station on Tuesday where he was charged with two counts of assault with a deadly weapon, one count of throwing a substance at a vehicle and one count of vandalism.The 'Sons of Hollywood' reality TV star was held for over an hour before being released after posting $60,000 bail. Arraignment has been set for July3. Sean has been told he could face five years in jail, because he was already on probation from a previous charge of assault, for which he served three months behind bars.The new charges stem from an altercation outside a private party in the Hollywood Hills on April 22.Tolabus and Ericka Stein claim Sean assaulted them with a brick before throwing objects at their cars and defacing their vehicle with graffiti. In addition to the criminal charges, the couple are suing Sean for assault and battery for undisclosed damages. According to their civil lawsuit Tolabus and Ericka filed last month at Los Angeles Superior Court, the couple were driving home when Sean and some friends started "swinging their arms at, punching, throwing bricks and other items" at them and their truck. Sean's attorney claims investigation of the incident has revealed "the alleged victim only named Sean Stewart as a suspect after hearing that Mr.Stewart was at the party that night and that the alleged victim had a financial motive to make these allegations against Mr. Stewart".