Dunham said she initially had no qualms with touched-up photos, despite her tendency to bare all on television.
"This was a kind of cognitive dissonance I didn't want to, and couldn't yet, consider," she wrote. She said "something snapped" when she saw the Spanish magazine's front cover.
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"Maybe it was the fact that I no longer understand what my own thighs look like," Dunham wrote.
"The gap between what I believe and what I allow to be done to my image has to close now.
"If that means no more fashion-magazine covers, so be it. Dunham declared said she was "your girl Friday" to any magazines willing to photograph her without touching-up the final product.
- AAP