I'm not aware of any product specifically for leather. I'd just suggest investigating the usual cat deterrents to see if one is suitable for you. You can start by searching the forum on "deterrent" and also Google on "cat deterrent" and "cat scratching furniture". You should be able to find lots of articles and good ideas.
no, she dosen't scratch it, but I wanted to be sure she dosen't, if that makes sense
Sure, that makes sense. I'm not sure you'll need to worry, though, few kitties like to scratch that material. Since she's not already, as long as you keep her occupied with other scratch materials, she'll leave your leather alone.
I don't know if any deterrent products are ok to spray on leather. In fact, I wouldn't want to spray anything other than conditioner on it - could ruin it.