Gwyneth Paltrow gave fans a treat on her birthday Sunday — a snapshot of her buck-naked in the woods.

“In nothing but my birthday suit today… thank you all so much for the birthday wishes and thank you to @goop ’s insanely amazing brand new body butter for making me think I can still get me my kit off,’’ the 48-year-old “Shakespeare in Love’’ actress wrote on Instagram, plugging her lifestyle company while grinning and covering her breasts for the camera with her right leg raised.

In the background were a low gate and a bunch of trees and bushes.

Paltrow has two children with musician ex Chris Martin and is married to Hollywood director and producer Brad Falchuk.

Additional reporting by Sara Nathan

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