how should I progress in linda's storyline? I completed the bj scenes and the special with the tissue box. It seems I need to talk to her and I dont know how. please help
You need to wash dishes in the kitchen, eventually it will give a message showing that you can initiate a new scene. Every character from the looks of it will work that way: do favours for them/talk to them to progress the storyline and increase their relationship with you, and then you unlock their next scene
