Last month, News of the World showed Lindsay Lohan being videoed snorting cocaine before bragging: "I'll f*** Jude Law tomorrow."

She bragged about the size of Jude's manhood before claiming she slept with him while he was dating Sienna Miller.

Her friend said: "She just got so carried away with bedding men like Jude and James Blunt she couldn't stop going out.

"She was hooked on pulling those kinds of men and took drugs to give her the confidence to approach them. She needs help to stop her obsession."

Meanwhile, a source claims Lindsay's family have paid for three guards to be with her in the clinic to make sure she does not escape.

The friend added: "The clinic even took her mobile from her to make sure she can't call people who are a bad influence on her.

"But she went berserk so they gave her a new phone with only the numbers of her family, publicist and agent on it.

"Now her friends just want her to stay in rehab for as long as possible. Only then will she be safe."