For those looking for the conversation about the vines on Saturday, First Afternoon, Garden, Run up to her, it will not be there if you hit the Cheat button at game start, because it has already been marked as done, just like every other conversational set-up.
You can just Walk up to him (feminization still needed) and have the new scene.
For those who do not hit the cheat button at game start, then you will have to first have the conversation with Run up to her, then get the scene with Walk up to him.