I'm sure it's a different experience for each of us. I find the sweaty contrast between black and white flesh to be interesting. There is also the taboo factor, how many racists in society still have a distaste for interracial relationships, no self-respecting white girl would ever have sex with black men. This was made all the more acute for me when my wife confessed to me that she finds black men to be very desirable.
It all started with her telling me about how she had many black lovers before she met me. We had been married for several years so I didn't know about this part of her sexual past when we wed. For some reason this turned me on, so I asked her to tell me more. She told me that none of them were long term, and she was only 18 and 19 years old at the time. She said she really enjoyed making love to them and was so turned on by them that she would do more adventurous things than she would otherwise even consider.
I asked her what she meant. One part of me didn't want to know but another was really excited to find out.
One of them really had some kind of spell on her. She had only been with him for a short time when he talked her into fucking him and some of his black friends one night.
I pressured her for more details and she also told me they all took her bareback and all of them came inside her. The mental picture of my petite blond wife willingly taking all that bare black cock and letting them dump their cum into her pretty little pussy instantly got me hard. She noticed this and even though we both were a little bothered that this turned me on so much we still had passionate sex several times that night.
I did ask her what she liked about her black lovers and she told me that she just found their black skin to be beautiful and loved the texture and smell of their skin. She also was really turned on by the contrast of their dark skin against her pale skin. Another thing was the taboo aspect of it all with her being brought up in the deep South.
I asked her about cock size, and she told me that nearly everyone she experienced was larger than normal, but the big thing was she thought their black cocks were just gorgeous and they seemed to be used in such a way that satisfied her very well. I made the lame joke about "once you go black, you can never go back" and asked her why she settled for a pale red white man like me. What I left unsaid was me wondering how my cock measured up to theirs.
"Honey, you know that the attitudes about mixed race couples have not always been as tolerant as they are now especially with me being from the South, my family would have been mortified if they had known I had even made love to a black man. I cannot imagine what they would have done if I had married one. You might not understand coming from New England. I just thought it would make my life way too complicated to stay with them in a lasting relationship. I really enjoyed the sex but decided to move on with my life in a different manner. Besides, I love you soooo much!"
This leads me to the last and perhaps the most important reason it is a turn on for me, Competition! I had witnessed how wholly submissive she could be with them and at least temporarily they were the alpha male with her. Every time she has had sex with black men, what I saw ignited something inside me that made me want to make love to her immediately after to reclaim her body as my own. I couldn't wait to shoot my sperm inside her, mixing with theirs and setting up the sperm competition, I had to restore my status as the alpha male.