Riley Giles: Lindsay Lohan is a Sex Fiend

Lindsay Lohan has replaced her need for drugs with a need for sex.

So claims ex-boyfriend Riley Giles in an interview with Britain's 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," he said. "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."

But not the (newly rich) Giles!

After he and Lindsay left rehab in Utah together, they moved into a romantic log cabin in the nearby mountains. This led to days of sex on end that would put Jamie Lynn Spears and Casey Aldrige to shame.

"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," Giles profoundly explained.

He then talked about the consternation of seeing a sight only four or five dozen other guys have viewed:

"The first time we had sex I couldn't believe I was looking down at Lindsay Lohan naked. We'd barely gotten through the door when we just ripped each other's clothes off," he said. "Lindsay is so hot. She has a great body. Her backside is fantastic, perfect, all plump and round."

Despite that fact, these two kids broke up last month. But they still talk every day, Giles insists.

"She's a great person but it's hard to have a girlfriend who's surrounded by movie stars and doing whatever she wants. Sure, her friends were all nice. But anyone can put on a face and I don't know how sincere they were. There are a lot of fakes in LA."