Scenes you might have missed (6) (Patreon)

When Ashley and Eva go partying, they can end up at these guys' house making some naughty stuff. For this to happen Eva must have been told by Ash to "be naughtier" previously and she has to be in shaky terms with Dave. This can happen is he has drawn Ashley for the art contest instead of her. 

Ash can only look or join in, and this can be triggered with thug Eva also.