This request was asked by Emily_is_a_speedster. I put your OC's name Ashley I hope you don't mind.

Description of Ashley:
Likes to make jokes. (Mostly on Ussop)
Uses the devil fruit Black-hole. (Just made that up.) So she can summon her Demon sword. Which she pulls out of her Stomach by reaching into her mouth.
Her hair color is silver length short. Wears more masculine clothes then feminine.
Sorry that this is gonna be short.
Let's begin~

Ashley's pov~
It was my normal day on the Thousand Sunny. (I forgot the name so if you guys do know it please tell me.😖) Waiting for everyone else to get up. I hear a yawn behind me. "Hey long nose." I say tiredly. "Shush you." I hear from Ussop, making me giggle, causing a blush to go on the boys face. 'If only I had the courage to tell him how I feel.' I think to myself. "Ashley-Swan~~!! Would you like a smoothie?" Sanji asks me. "Hm no thanks Sanji-kun." I say cheery. "Alright Ashley-swan!" Sanji says doing his noodle dance. He leaves me and Ussop alone to start making breakfast for everyone. "U-Ussop." I say with a stutter. "Yeah Ash?" (WHO'S THAT POKEMON!!) "I-I got something I've been needing to tell you." I say with another stutter. "Shoot." He says. "I... I have liked you for awhile." I say with a little mumble. I look up to see Ussop with a blush on his cheeks. "I-i-i-I like y-you to Ashley." Ussop says. He hugs me close. "Thanks big nose." "STOP SAYING I HAVE A BIG NOSE!!" He yells chasing me around the ship.

~The End~

Sorry Emily_is_a_speedster. It's not as long as I hope but it was all I could come up with. Thank you for requesting!