I was looking at the hand as representing a white chick offering offering up herself as being ready, plump and well-fed (as it would be too difficult to fond a pic of a real chicken). Therefore, having ingested semi-sweet feed, her pussy might reflect such flavor, thereby enticing the black cock.
Yeah, sometimes my mind gets twisted and carried away...especially when I have Rage Against the Machine raging in my headphones (WAKE UUUPPP!!!!)