You did it! Let's hop a cab, and split it
I'm kiddin! We both goin' to where you livin'!

from John Legend (Ft. Andre 3000) – Green Light Lyrics on Rap Genius


He’s joking that they are going to separate places when they leave, then in a boasting manner (consistent with knowing she wants to screw him) arrogantly admits the are going to her place for the sexy time.

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