How in the fuck do you get Madison's beach scene? I have tried every possible answer, sequence and even followed the walkthrough and yet I still cannot get it to happen
It's a little bit complicated, essentially you are not wasting time, and by not wasting time you get the scene. One way to do it is to ignore Hyuna at the beach bar entirely, buy the alcohol from Daisy at the shop, don't hide when getting the cd's and boombox from home, get the Sushi from the blue-haired girl (forgot her name, sorry!), and get the oil from the church. Alternately, you can meet Hyuna, say that you can tell she doesn't want to hear about V, and grab the bottle of alcohol that's sitting in the sand instead of returning it to her. Follow the rest of the lineup and you should get the scene. If you hide when getting the boombox or start trying to get Hyuna to understand V's intentions you have wasted too much time.
Unfortunately the walkthrough mod doesn't really help when trying to get this specific scene, and while you get the lewd scene with Madison by doing this, you miss the lewd scene you would've gotten if you had hidden while getting the boombox, and while you will still get the lewd scene with Hyuna in the most recent update, you will get a shortened version of it instead of the full longer version.