I’ll second the “disgusting.” AFAIK, stomas don’t have the nerve endings present in the anus, so I can’t imagine it would be enjoyable to the receiver - probably unpleasant, actually. I’ve never met a person with a stoma that thought of it as anything other than “this damn hole in my side.”
By the way, all you had to do was google on stoma intercourse. (Not in quotes) First hit says it’s not a good idea as the stoma can be damaged.
A hooker had an appendectomy. The surgeon, though, was stumbling drunk at the time, and he sewed up the wrong opening. Now, she’s making money on the side.
A doctor I know told me that one of his friends from medical school treated a prisoner with a colostomy who had venereal warts around the colostomy opening.