Hi js,
I would call these images that turn you on fantasies. Fantasies are things you are fee to enjoy, they don't have to have any relation to what you like to do or see in real life, they don't even have to make sense. They are just some thoughts that cue nice feelings for you! I don't see anything disgusting about that.
I also don't think it's problematic to not enjoy partnered sex or the thought of any types of sex. That might just be a fact of how you experience life, especially right now... and as you mention, there are plenty of people for whom asexuality is a big part of their identity.
Pressuring ourselves to enjoy the things we think we should, or to suppress the fantasies or thoughts, is really just a way of telling ourselves that we aren't entitled to our own thoughts, or pleasure... and sometimes makes being in our own heads even more frustrating.
And to quote one of our articles:
"Trying to stop or shut down hard or uncomfortable thoughts or feelings: not only does that not tend to work, and can even make those feelings or thoughts stronger, letting those thoughts or feelings out is really the way to go to best process and sort through them. You need to let those thoughts and feelings be what they are and accept them." from:
Self-Care a La Carte
A bit of self acceptance around our fantasies and orientation, can help us feel more relaxed, and also can make way for how our sexualities and personalities can develop and change over time.
"In between two tall mountains there's a place they call lonesome.
Don't see why they call it lonesome.
I'm never lonesome when I go there." Connie Converse - Talkin' Like You