Reddit mentions of Hegar 8 Urethral Sounds

That is a urethral sounding kit http://www.amazon.com/gp/aw/d/B0058A4ZOE/ref=redir_mdp_mobile

He should invest in a set of surgical steel urethral sounds

before getting that, get a set of these (or something similar) so you can at least figure out your size. Some people have a small urethra and can't fit that chastity device at all. Some people have a big urethra and that chastity device would not be comfortable for them. You want the right fit, and the only way to find out your size is to use a set like the link above.

Next, learn how to use sounds. Learn how to sterilize them. Learn how to safely insert them. Learn how to reduce the risk of a UTI. Learn the risks involved and become comfortable with them or don't do it at all. Here is a good start on that road.

Finally, pick a chastity device (or don't) that involves a urethral spike.

Oh man, if you go straight to the finger, it's going to hurt like hell.

This is like going from a woman never having sex, to fucking a dude with a 10 inch cock on the night she loses her virginity.

Sounding is totally a thing, but you need to work your way up to something the size of a finger (even a small finger).

First of all - you should totally get into it. Why not?

Second: Tell your girl that you need to start off with a set of sounds. Get something like this.

Start with the smallest, and work your way up. I'm sure your girl will love trying a new thing with you, and I'm pretty sure you'll love it too. I've been wanting to get into sounding for years.

If you want more info on the stuff, google "Urethral Sounding".

But please, please don't start off with the finger. That'll hurt like hell if it's the first thing.

Putting things in a pee hole is called "sounding". Normally this is done with a metal rod. Here is a sounding kit on Amazon http://www.amazon.com/Hegar-8-Urethral-Sounds/dp/B0058A4ZOE/ref=cm_cr_pr_product_top

Well for some people that's enough. But others like to experiment with stretching and/or they have different fetishes.

This guy apparently wanted to feel something crawling inside.

Or he could have an infection and the maggots are cleaning it out.

(Sounding does feel amazing btw I have that kit)

What I would do is try having her hold larger urethral sounds in her vagina for increasing periods of time until there is no more pain. I own this kit and it should help. These are actually medical quality tools and cost very little. They should be all you need besides some good lube.

https://www.amazon.com/Hegar-8-Urethral-Sounds/dp/B0058A4ZOE

I had a girlfriend for a bit that went crazy when I used the largest one like a dildo on her pussy.

Then once she can comfortably take the largest one with no pain graduate up to dilators or very small dildos.

I hope this helps.

Not really. This is the one I have
https://www.amazon.com/gp/aw/d/B0058A4ZOE?psc=1&ref=ppx_pop_mob_b_asin_title

They actually sell a set of devices called sounds that will progressively stretch that - you can even get them on Amazon


https://www.amazon.com/Hegar-8-Urethral-Sounds/dp/B0058A4ZOE

https://www.amazon.com/Hegar-8-Urethral-Sounds/dp/B0058A4ZOE

If you need something more gentle . . . .