Need help identifying a fetish

[Fisherman]

So the other day I came across some pictures of women sticking things down the hole of a man's penis. It was usually a thing metal rod and one woman actually fit her finger inside. I also came across some video of a woman working a smaller dildo inside some guy's pee hole. Does anyone know what this is actually called? It kind of fascinated me though I don't think I would have the courage to actually do it. Has anyone else ever done anything like this?

[theword]

It's called "sounding". The finger/dildo guy is rather unique and a `celeb' in this area! All toys for this should be totally sterile.

[zaxv]

All toys for this should be totally sterile.
Yep, otherwise it's an infection of the urinary tract right there... Not fun