Hello! Thank you for your concerns. Kali has always known how to cum, the issue is that she can cum easiest when MC is on top of her. So other positions wouldn't do it for her as well. Kali is still able to use toys to get herself off, but Kali has discovered that it's easiest with MC. Each character's story can only be played one way chronologically speaking so that's meant to happen that way. Though I do see where you're coming from will be considering this