Plus your mom call me son, around you since I was small
Shit, I watched you mature, nah, this ain't right
They grew up together since they were little
She’s more of a sister than a girlfriend
Don’t date your sister
Just to clear up speculation, this line isn’t referencing the movie Scarface. Tony’s mom never knew Manolo and Manolo didn’t know her when she was younger. While this may allude to Scarface, Jay is talking from an introspective general scenario where he may have been friends with the girl’s brother from a long time ago.
To help improve the meaning of these lyrics, visit "Soon You'll Understand" by Jay Z Lyrics and leave a comment on the lyrics box