What is the difference between 嫐 and 嬲?
I'm afraid there is no "common usage" of these two characters in contemporary Chinese. They are used only in colloquial dialect.

For exapmle:
我嬲都不嬲你 I don't fuck with you

You may hear this sentence, but you can hardly see it in the written Chinese.

To find out their difference, just consider them as pictographic characters, then what is the difference between teasing scenarios "Man-Woman-Man" and "Woman-Man-Woman"? You can imagine it, right? 

Edit: Perhaps 嫐 is more sexy(coquettish) than 嬲, according to 《康熙字典》: “娆，嫐也。”