@RedsliverNarative, and an individual's skill as a storyteller make significant difference, at least to me.
There are topics I don't enjoy, however, sometimes unpleasent events may be a character building experience.
Often it is a matter of how an event is described.
In a story I read here, Human Trafficers commit premeditatated Rape upon several girls/women 16-19, a girl 15 is not raped because selling her virginity is too valuable. There was some detail, but the Feel of the scene is of Violence, and it confirms what was earlier speculated on that girls and young women were being raped, prior to being forced into stripping an prostitution.
Earlier scenes had hinted (panties and other evidence found on the ground), some of the stripped described as being "Listless" and having "Dead Eyes" even a "suprising Lack of Street Prostitution" that girls and young women were being Trafficed, and that Rape was used to "Brake" them.
Most of this was "off Screen" or at least not detailed.
More importantly, these actions were depicted as acts of Violence, and depravity. Also, the fifteen-year-old virgin was rescued before being defiled; as were many of the trafficed women.
I found this to be good narative, despite skirting the edge of what I am willing to read. I have be disgusted by some other writers who depict violent rape in a manner that makes me percieve they enjoy reading about forciable rape. Detailing not merely the sexual satisfaction, but an emotional enjoyment of the sufferring of the victim.
This being significantly different from the codes "Reluctant" or even "Non-Concentual" Especially in fiction, one partner (most often the female) starting out reluctant, or even saying "No" as long as the narative reveals that the reluctant partner Really Did want their partner to be dominant.
(In some rare cases this could be a "missunderstanding" as long as there are Consequences.)
I have not read "Fifty Shades of Grey" but I have read, or participated in some light bondage, or "role playing" to satisfy the fantasies of a partner.
Often the Words could be identical, and the depeictions nearly so. Yet, there is a Feel to different naratives, one being of violence Inflicted upon an unwilling victim. The other is the fulfilment of a Fantasy (often of the person "not" concenting).
Back in college, I had a girlfriend who wanted to experiment with bondage. We went to several "Lover's Package" and XXX stores, where she found all of the chains to be unsatisfactory (she believed she cold break free). So, we ended up going to a hardware store to purchase quite substantial chains to attach to custom leather wrist and ankle cuffs.
When we fulfiled these Fantasies for her, she would fight against the chains, and she would yell and demand to be released (but Not use our agreed upon Safe Word). After each of these fantasies, she would assure me that it was What She Wanted. Fantasies her previous boyfriends were unable to be convincing in.
I had clearly been more than a little uncomfortable, especially the first time. She told me that added to her confidence I would have responded promptly If she Had used our Safe Word. Thus she felt comfortable indulging in her Fantasies! (She was a competative college, athlete, and had always felt she could have overpowered previous boyfriends.) After the first time, I grew to enjoy these occasional fantasies because she was extremely passionate and wonton. Also, these were an Occasional fantasy, Not something she wanted every time we had sex.
Until those experiences, I don't think I Really believed that a significant number of women had "Rape" / Bondage / "Non-Concent" Fantasies. Because I knew women and girls that had been raped, I had been dubious about such a "Fantasy" until induldging her in her desires.
Similarlly, how a "Rape" "Non-Concent" "Reluctant" or Bondage Scene is written makes a Significant difference between it having a spectrum from "Squick" to Yuck, to "Eh" to Okay, to "HOT!"
This may apply to just about Any Tag on SoL.