Like if says, only pics of female urethral insertions-no futa.
[Mustang R] Chichi Kuri Choukyou Kitto -Saikyou-ban
there you go bro name and artist
translated by desudesu
you should know where to go from there
dunno about spikes but I have seen studded or like beads used in 3d porn, also seen regular dildos in extra extreme vids lol.
there is this one vid I saw with Roxy Raye where she stuffs a set of superlong grey beads up her pisshole.
you can get it on torrent in one of her siterip packs
That's my fetish. Too bad it's so hard to find, searching for urethral penetration brings up dicks 99% of the time.
I recall that series, alas I too did not save it.
When I was a kid I stole medical grade tubing from some supplies for my brothers nebulizer and made makeshift catheters and did a bunch of weird stuff with my peehole. Also at recess I would take a light up lightsaber keychain toy and put it in my urethra in the bathroom. It felt great. Now it's a huge fetish for me but I never find much on it or into it. The artist Ogu has some stuff that really turns me on.