Really

I'm not sure why someone would put these words on their cock, I'm betting he did it to appease a bottom. If you have a cock this size and you have to even think about giving instructions on such a basic level, then you really don't want them around your cock.

It also had to put onto the cock after it was fully erect, or otherwise all you'd see would be "SK HE ." and no one knows what the hell that means.