Black leading men and love scenes?

[James]

This just struck me the other day. There are high power black leading men in the film industry. Denzel Washington and Will Smith come to mind because they both just made a few big movies.

What I have noticed is that when a black leading man is opposite a white leading lady, there often isn't a love scene.

Sexual tension between the two will be created, but no love scene.

And yet, if a Black female lead plays opposite a white male lead I would expect to see a sex scene.

Is something anyone else has noticed? Or am I extrapolating a larger phenomona from small isolated movies?