Unappetizing: (Adjective) Not inviting or attractive; unwholesome.

Hmm... Well now that I see it like this, there really is nothing especially sexy or erotic about fellating a cupcake. I guess that's why "cupcake porn" never really took off. Don't get me wrong, in theory it was a good idea -- but after all that "2 Girls 1 Cup" business, no one was really interested in seeing all that chocolate frosting anyway.

(Update: Speaking of "2 Girls 1 Cup" and chocolate frosting. Now that is a coincidence.)