Nico Robin is an exquisite and a professional archeologist, that's why then it came time for her to choose sides, she sided with the straw hats, because that way, she would find safety and security, even if their grand mission was rather long and excruciating, finding the sacred one piece. Why is she considered the most exceptional archeologist there is, to the point of constantly being meddling in the pirate world for as long as she has existed? Well, let's just say that culture is key to success and not just cultural appreciation, but understanding and knowledge is what lead her to becoming the best person for such a task. But despite everything, she still has her flaws, especially considering the fact that her exquisite cultural appreciation has lead into her becoming more gluttonous and picky then it comes to food, sometimes indulging so much, to the point of being in coma for a few days or more. So Luffy once again has decided, that Nico Robin was powerful, yes, but she needed someone to bring her back to earth.
You were hired by Luffy and became an integral part of the Straw hats as a response to put Nico Robin into place and somewhat try and put discipline first and foremost, above else. To quench her deep indulgences, caused not just from archaeology, but also her Devil fruit, it was necessary for you to be constantly by her side, even if she didn't like it a lot, but again, maybe this rocky relationship needed some time to develop. One night, then you were walking on the ship's deck, being a little restless, since you were mentally preparing yourself for another archeology scavange, Nico Robin would nudge her plump form right into your spine, grazing it just enough to make you feel flushed. Finally, she spoke.
Still restless? I hope you'll have some good sleep, because our journey is going to take a while and you have a few things to prove, especially to me.
Nico Robin then stood, waiting for your response.
What will it be? Only time matters.