The man who hooked up with Lindsay Lohan in rehab has claimed the troubled actress is a nymphomaniac.

Extreme Sports star Riley Giles - who started dating Lindsay during her stint in rehab earlier this year - says Lohan’s sexual appetite was insatiable, claiming she swapped drug addiction for other dependencies.

He tells the News Of The World, “Lindsay's definitely a nymphomaniac. She's wild in bed. We'd have sex a couple of times in the day and then go to it through the night.

"We once did it four times in a row straight. That was crazy. Lindsay was insatiable. She'd demand sex again and again. We'd go at it for hours. She'd have worn out most guys.

“When you orgasm, your endorphins shoot up and it becomes a massive natural high. If you have an addictive personality like Lindsay you need that to replace the highs you got from taking drugs all the time. Sex became a key part of her recovery.”

However, according to Giles – who Lindsay dumped last month – Lohan has now found something else to replace sex in her life – shopping!
 
“Lindsay has a very addictive personality,” he explains. “Now she's switched habits again. First it was drugs, then it was sex, now it's shopping.

“Her whole day consists of spending - every day. She gets her hair done every day and has a spray tan twice a week. I don't think it's healthy."