why are you making assumptions about skin color along with everything else? it's not enough to be homophobic you have to be racist as well? why not imagine me sucking a white cock, or a yellow cock? is it cause you think black is the worst? why are you thinking about me sucking cock anyways?
seems to me the blatant racist sitting around thinking about dudes sucking off other dudes is the degenerate. but that's none of my business.
in answer to your question, op, no, sorry. you'll have to go searching for some erotica if you want to hear a story like that. here's a link for you:
https://www.literotica.com/c/gay-sex-stories