Lady Sue learned about ass worshipping but she did not know how it felt as she had never had it done on her. She was interested in it and she had to get it done to her. That is why she had to get herself a loser and get him to worship her ass. She had to make sure that he licked her ass and that he smelled it as well and did anything else she wanted done to her ass.
Lady Sue has a hot ass and she wanted to have it worshipped. So she instructed this guy what to do and she scared him on what would happen if he did not do things the way she expected him to and that he would have himself to blame if he did not do things right. The scared guy chose to listen to her and lick as well as worship her ass accordingly.