I've had many big cock tops, black or white, it doesn't matter the colour, it matters how they speak to you assertively beforehand and during as to how well the dicking hits the spot. Coincidentally I found more blacks have this ability, could be a coincidence, could be something eĺse. But without being spoken to in such a way, it completely changes it. It's almost as if you need to be told that you're a female so your body reacts as though it can behave like one.