NOTICE : In this list I literally just went down a list and selected from all the women in one piece and chose the prettiest. Each character at the time of mature scenes should there be any will be 18. So despite starting the book during most of these character childhood any mature content will occur at 18.
Monkey D Lucy (Female Luffy)
Figarland Uta
Makino
Alvida
Nami
Nojiko
Bellemere
Hai (Female Hatchi)
Kuina
Zori (Female Zoro
Uzi (Femae Ussop)
Kaya
Sansi (Female Sanji)
Reiju
Tashigi
Gol D Cea (Female Ace)
Sabina (Female Sabo)
Nefertiti Vivi
Mikita
Marianne
Tonsette Chappi
Zala
Nico Robin
Hina
Conis
Raki
Porche
Kozu
Kiwi
Frannie (Female Franky)
Khalifa
Bruhi (Femal Brook : Imagine Lady Death from Marvel but with rock star gear and amazing tits in a bikini)
Perona
Boa Hancock
Marguerite
Shakky
Sadi
Domino
Ginny
Seira
Shyarly
Camie
Ishilly
Mero
Monet
Baby 5
Belo betty
Charlotte pudding
Charlotte smoothie
Charlotte myukuru
Charlotte nutmeg
Charlotte praline
Charlotte prim
Charlotte harumeg
Charlotte Gallete
Charlotte fuyumeg
Charlotte cinnamon
Carrot
Black Maria
Ginrummy
Gion
Koala
Izumi hiyori
Poppy
Lilith
Shirahoshi
Viola
Jewelry Bonney
Rebbeca
Scarlett
Otohime
Stussy
Alpha
Trafalgar lassy
Ulti
Wanda