Your woman has gone for long enough without some high quality dick. You're just not giving her what she wants, so she's forced to go elsewhere.
 
You can protest as much as you want - it's not going to change the fact that I'm going to want to get dick from other sources. You have a tiny cock. A woman as gorgeous as me should not have to lower herself to the level of being with a guy that's as small as you. I'm taking a black cock, you're watching me do it and there's nothing you can say that will change that fact.
 
Do you feel that humiliation bubbling through you as a complete stranger takes my white pussy with his big black cock? That's how I feel when you try to have sex with me using that pathetic dick of yours. I can tell you now: this isn't going to be the last time I let a huge black stud fuck me in front of you. Oh no, I'm going to make this interracial cuckold experience a regular occurrence.