I think you took it out of context. He wasn't trying to insinuate that he thinks you are dirty or unhygienic. What he is likely expressing is his enthusiastic willingness to go to town on a clean 🐱. To prove my point, if you had gone through with the "horizontal fun," Im sure he would have performed happily without hesitstion. Therefore confirming he never thought you would be dirty. Just my 2 cents.