It seemed like the only thing that happens is that if you answer "1" you don't get her writhe session, but everything else played the same. That's why I thought it might be an "oops" since this Dev doesn't really seem to think that far ahead, especially in the last several episodes.
Out of curiosity, did you seen any stats counters or is it just a binary: you choose this, you get this scene in the update, you choose the other, and you don't get the scene. I get the impression this isn't a long-term dependencies kind of VN given the "Dueling Drunk Hoes" scene wasn't even brought up at any later date - the girls just fell asleep naked and drunk on a bed together and "The Next Day" life goes on as if nothing ever happened.