In the beginning I didn't want to do it. I didn't want to lick even my own cum out of my wife's pussy. But as she insisted I did it once and then I did it again and again. Then I was ready for the next step: To lick and clean the bull's cum too.
Now I got used to it. Not only it doesn't bother me anymore, but I also enjoy it very much licking and cleaning Maria's pussy with my tongue after sex with her bull.