Meeting His Brothers.

So this one was requested, I don't intend on making it a very long story but we'll see where it goes.
It's a Modern AU and Luffy will have four big brothers, I'll explain it for the newer readers so that everybody understands what I'm going for here.
Luffy's growing up and finally found himself a girlfriend, that's you. Of course, he's completely inexperienced when it comes to romance and seeks the help of his older brothers, much to their dismay.
Let's see how it goes!
I hope you all enjoy and of course, I own nothing!
This will be rated mature for reasons such as; sexual talk, vulgar language and mention of abuse.
Please, enjoy.
Requested by: @snowfox138