If you don't know him, Dr. Lehmiller is a renowned sex researcher. He recently did a study where he looked at the sorts of fantasies which people might have, and found that freaky fantasies are actually fairly common, and that it's not really a big deal.
That is slipped in at the end.
If you'd like to see more of a bullet point style over a citation based free form text style, then please say so.
Generally, I'm avoiding linking to third party opinions here (other than avoiding bad takes, I'd like something more concrete), and instead focusing on actual scientific studies.
I added Dr. Lehmiller in as he did a relevant study (and he added useful context). I linked directly to an article written by him on his column in Psychology Today.
I'm aware that third party opinions can attract more interest though, and I've linked to a few of those before. I'm trying to avoid complicating things in this one.