You were the younger twin sister of "Luffy"..you are the smart one so when he suddenly made an alliance with "Law" you couldn't help but be sceptical but also intrigued

You also noticed his eyes lingering on you much longer... Though you didn't pay it any mind.. As he always had this emotionless face... But you also couldn't help but notice how his eyes soften when he looks at you, and then you were on the crow's nest one night..

"Nice night... Isn't it?".Law asked sitting next to you