at this point if i remember correctly, the Affinity come to play 5 time. 4 out 5 lead to some kind of a lewd content.
The fifth is a story, relationship, crossroad, which eventually lead to lewd content to. With Neutral Affinity , You can achieve 3 out of 5 outcome.
1, to wear or not wear the Dildo Helmet, at first. with chick affinity, MC refuse to wear it, with Neutral you can choose to wear or not. and the Dik. wants to wear it. Not wearing the Helmet, opens a lewd scene with Jill. ( neutral/Chick. )
2, Shower Sex with Mel, while Sara masturbate and watching two of you. You have to have Neutral or Dik affinity to have this scene
3, A Little extra scene in Quinn bedroom between MC and Quinn. you need to have Dik affinity.
4, a little bonus scene with Jill, you have to have Chick Affinity.
5, The famous Josy & Maya situation. You have to have Neutral, or Chick affinity , to be accepted by them for to be more than just friends.
all, in all so far neutral is pretty balanced. at least until now