The reaction was immediate, with the definitely-NSFW post racking up more than 1300 retweets in an hour. Meanwhile, the Twittersphere has descended into a dark pit of awkward virtual side-eyes and even filthier puns.
There were also accusations of sexism, with one person saying the chain has "set women back 50 years".
In a statement to News.com.au at the time, KFC said: "This was a genuine tweet to launch KFC's new Hot & Spicy chicken products next week. It was not intended to offend and we've removed the image."