The daughter of former Presidential candidate John McCain has sparked an internet storm by posting a picture of herself wearing a revealing skimpy top, on Twitter.

The snap shows Meghan McCain’s eye-catching cleavage – but she insists she only ever intended to reveal her decision to have a quiet night in reading an Andy Warhol biography.

Meghan, 24, told of her shock and upset at the reaction to the pic and has warned she may delete her Twitter account after some critics branded her a “slut”.

She Tweeted: “So I took a fun picture not thinking anything about what I was wearing, but apparently anything other than a pantsuit and I am a slut.”

She added: “When I am alone in my apartment I wear tank tops and sweat pants, I had no idea this makes me a s***. I can’t even tell you how hurt I am.”

Meghan, who has nearly 60,000 Twitter “Followers” also Tweeted: “I do want to apologize to anyone that was offended by my twitpic, I have clearly made a huge mistake and am sorry 2 those that are offended.”