Gemma's scar
I just started watching the show recently, only about a third of the way through Season 2, so please don't spoil anything for me.
Gemma has a very noticeable scar in the middle of her chest. Because of how clear it is, and the location, I'm guessing it wasn't part of breast augmentation surgery. I'm just curious - does the scar ever get explained, or is it just a minor mystery? Again, just looking for a simple yes or no answer as to whether it gets explained, not looking for the explanation at this point.
"My girlfriend sucked 37 d*cks!"
"In a row?"