That bottom picture looks like some type of portable toilets. The article said pig sex included watersports and defecation. I can only imagine what would be done with the contents of the toilets. The top picture looks like stuff that could be used in some type of bondage.
Sick stuff.
Contents? Those are pillows under those seats. What usually goes on a pillow? There’s no way in hell this kind of activity should ever be allowed in any public use facility. The whole hotel would have to be autoclaved before customers could ever use it again.