She remains at 188 cm.
But I already put more thoughts into that matter, than possibly needed.
I understand that each of them have a reason for happening in the story that definitely isn't to say something about Nami's sexuality.
Kalifa soap scene: This was based on a running joke about how sexy Kalifa is and how sexy her devil fruit was.
Despite the slightly aggressive tongue-in-cheek titles in the image and on the post I'm not trying to say that it's canon or 100% what Oda intended, I'm just presenting a possible interpretation of the character, backed up with subtext from canon scenes.
It feels like you really want to see lesbianism here so you're seeing what you want to see.