She said: "If there is a huge drug fest happening andeveryone is getting it on in the bedroom, it is probably time to leave."
Jessica's sensible attitude stems from her teenage yearswhere, even though she was a working actress, she still had to live by herfamily's rules.
She explained in an interview with The Sun newspaper:"I was lucky to get a part in a long-running TV series, '7th Heaven', whenI was 14, and everything took off from there.
"It was like having two families, my real one and thecast. My mum had me under curfew, so I was well known on TVat the same time as having to be back home early."
Jessica also credits her mother Kimberly with giving her asensible attitude to her body image.
She said: "My mum Kim taught me an important lesson inHollywood - if someone says you are too fat, tell them to p**s off. My mum brought me up with sports and a healthy image.It was just how we lived. With her attitude and upbringing, I have been luckynot to have an eating disorder or a drug habit to stay skinny."
"I am 5ft 7in and don't go along with the Hollywoodobsession with weight."
