I hope Anko and Naruto work everything out, but if it requires Naruto being submissive I can understand why it won't work out.
I was actually looking forward to Kukaku being a part of the group, but that was destroyed pretty quickly. If she's just gonna whore herself out whenever she has the opportunity she's going to be a massive disappointment.
I'd almost prefer Kukaku stay unbound if she's just going to continue that behavior afterward.