And we thought Lindsey Lohan was being such a good girl.

Ever since entering rehab in Utah, reports of the one-time party girl have been all ponies and roses - quite literally.

Not only does she love tending to the clinic's flowers, but she even enjoys riding the horses and whiles away her hours mucking out their poop. Or so we were led to believe.

It seems that she hasn't totally left her wild ways behind her and has been partaking in a bit of stallion riding (if you pardon the pun) on the sly.

The 21-year-old singer has been accused of getting up to no good with Dead Stays Alive frontman Tony Allen, 39, in the toilet of the Circus Lodge clinic.

What's more, he's a married man with a family. Get back to pruning and shoveling Lindz - no-one likes a homewrecker!

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