Hardees Fresh Buns draws controversy in its Ads

Is it just a bun or something else? Hardees, a fast-food chain serving fried chicken, big burgers and made-from-scratch breakfast biscuits draws attention when it posts a very controversial ad on one of its upcoming stores in Pakistan.
The Hardees ad which says, "Fresh Buns" and exhibits a picture of a hand pressing on a bread or bun seems really giving passersby and everyone a double meaning to it. Besides being a bun it looks like something else.

Here's the controversial ad which becomes trending on Facebook. Was it a bun or something else?