I had a Mistress who, without telling me her plans for me in advance, slowly and methodically tried to turn me into a sissy for black cock. She started with the mental aspect and worked me up to buying a black dildo to practice sucking so one day I would be a good cocksucker and to ride it when she wanted to see it in my ass. After a long time of practice and playing, she told me I wasn't allowed to cum unless I licked it up after...."licked it up after" meant off the black dildo while jerking off to black cock and begging for black dick. Now, I jerk off to black cock almost exclusively and I get extremely horny when I suck that black dildo. I hate, repeat, HATE licking my own cum but she basically trained me. I get hornier when I suck that dildo than any other thing, stories, porn and when I suck it I get closer and closer to cumming on it and then sucking it. It's like a physical trigger now and recently I have realized that more than ever