I have never heard of such a thing, Horse Vagina, let's call it. Sure, sitting long and hard on something can give the tushie some temporary streaking red marks, but actually attributing labia formation to a bronco? Are you saying that the chronic smooshing of your vagina lips has caused permanent elongation? Hmm. That is, in all likelihood, horseshit, my dear lady.
I think you're pointing fingers at the pony when it should be pointed (if anywhere) at genetics. And that said, it sounds like a non-issue. You sound like a very beautiful lass. A woman with an athletic and curvaceous body. I would bet two straws that your "Horse Vagina" won't bother any man in your future.
Most men I know dig a woman who has a deep physical passion. Like horse riding or volleyball or soccer or naked judo. A woman who's integrated with her body is sexy, bumps and streaks included. So relax, be stable. And if you're still not convinced ask your gyno if Horse Vagina is a real thing...
First of all porn IS NOT REAL. Pornography is shot and edited in a way that is pleasing to the viewer (both visually and sexually). So average everyday people 1) do not look like porn stars 2) the sex you see in porn is not always an acurrate portrayal of your average sexual encounter. So don't compare yourself and your sex life to pornstars. Like the beauty/fashion what you're seeing in mainstream porn is fake and manipulated. It's incredibly high and unobtainable standards that purposely make you feel inadequate, so you can keep buying what they are selling.
So I'm agreeing with FG and saying your body is totally normal. Embrace it.
Good luck to you.
Ahaha I think she meant she has a vulva like that in a addition to the red marks from the horse riding!
As for whether guys will run in terror from it, find a male who doesn't base all their expectations and desires in the bedroom on porn and you should be good to go. Vulvas come in lots of different shapes and sizes so a bit of extra folding is hardly going to put a normal person off. And wondering about red marks on your bottom will probably be the last thing going through their mind.
Naked Judo? I don't even... I mean... How would that even work?