Inflatable butt plugs

I've done a few wider diameter insertions but I have always wanted to push myself to see how much I can take. What's the best inflatable plug to start with?

You might want to try an inflatable enema catheter like the double balloon ones discussed in many links here on Zity. I bought a Cleanstream off Amazon (single balloon) but found it ultimately lacking in water-tight integrity. You really need the double to seal things up properly for an enema. That said, it was straight forward to insert and inflate and provided a great feeling of fullness.

Twest is referring to plug size, not enema volume and a balloon catheter won't spread the anus, which is the beauty of them while still retaining the enema.

Inflatable black dildos which seem to be available everywhere are good since you can insert it half way and inflate it to widen the anus if that's what your intention is.

I've tried several brands and this is what I am currently using. I've used a couple so long that I've had to replace them. The only problem for me is that I can take more than any inflatable plug (that I've found) can offer. I over fill them and one of two things happens, either the seal (where it is glued) around the inflatable bulb comes lose or the inflatable bulb itself will pop, like a balloon. I've learned that when I first get these to put a little black electrical tape around the part where the bulb is glued to the tube and that seems to make the original bulb last a little longer. Once it either comes lose or pops, I will use black electrical tape and tape a regular ballon to it. When the regular balloon pops, I simply tape another one on it. I actually prefer the regular balloon much more that the original bulb. The balloon is more pliable and I can take even more with it because it shapes to my insides much better. I love a deep full feeling and I can put this up inside of me quite a ways before I inflate it. It is so far up inside of me that even after inflating it to my max, that I can't feel it when I put my fingers inside of me to check it's depth. I've taken as many as 52 pumps before I reach my max and the feeling is so awesome.

https://www.extremerestraints.com/inflatable-dildos_42/the-frisky-inflatable-stimulator_6804.html

^^^This "tonka" might do the trick - http://www.medicaltoys.com/anal-play.htm