When a rival beats you in sexual selection (the female chooses them and not you) you feel jealous (well people do in general).
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To be clear I am talking about the sexual act. A well written lesbian romance is just as interesting to me as any other.
I don't buy the argument about jealousy, otherwise heterosexual porn wouldn't be so popular.
Well it would only be a subconscious factor among other stronger factors (in the theory).
When I watch porn I imagine being the porn actor. I don't feel any jelousy, maybe a bit of envy towards the actor's penis size.
Why would you envy something you have if you are the actor in the fantasy?
On a related note I've seen lots of discussion about what makes a protagonist the protagonist, how far to people go when imagining themselves as the protagonist? Are stories where the protagonist isn't clear chaotic or flexible?
But you said something interesting, that you like lesbian romance. Maybe you respond better to sexual stories, like erotic movies.
I am not sure what would be "better" or "worse" but I certainly appreciate erotic stories especially in a wider romantic plot, but I don't think that's unusual or surprising.
It's the same reason a long running series can be capped by a movie and the movie means so much more for all the character development of the series.
Do you like porn? Do you like to do dirty things during sex?
I like porn. I don't know exactly what you mean by "dirty". Some people call anything sexual dirty, but I have no kink for actual mud, unpleasant smells or substances, etc...
Well, uncommon things that average women wouldn't engage in, like oral sex, anal sex, ass-licking, cum on face, cum swallowing, and so on.
I am told I do not have a lot of experience with women for a man of my age, but it sounds as if the women in my locale are much more... 'open' than what you are used to.
Oral sex and swallowing have not been considered outside the comfort zone by any woman (or man) I've had sex with. None of them (women not men) have asked for anal sex and I have not suggested it. I get the impression but obviously cannot know for sure that the anus is a poor substitute for a vagina and aside from being a contraceptive strategy or the only option for male reception I think it's only suggested out of a desperate boredom with normal intercourse.
Ass licking is not something I've done nor something I would ask someone else to do. That does gross me out, although... you can clean the rectum fairly well; but again that's firmly in the "doing it just because it is something different" and I would exhaust many many other options before resorting to that. I don't want to do that so much that I don't even tell people I don't want to do it because then they would make it a challenge to nag me about.