How to Get a BIG Hole

I started in 2000 by bushing a large pin through from belly side to the under side. I left it there for a few days, and yes it hurt. I enjoy the pain so going to work or moving in a chair was enough to start an erection.
I kept inserting larger things to stretch the hole. I used electro when I was stretching...hell...I use it all the time. Electro seems to anesthetize somewhat.
After I got to about 3/8" opening it started to go off center. Then I started cutting.
I put in a 7/16" diameter stretcher so it hurt pretty much. Then, I used a small knife with electricity flowing to cut about 1/8" into the meat.
The cut relieved the stretching and the pain went down. I left the 7/16" stretcher in for 4-5 days. There was hardly any bleeding and within 7 days the bleeding was gone.
I did that again several times to get the opening up to 3/4".

There is still enough stretching that I must keep something in there or it will close back down to 3/8"