You must tie a strap around the base, though
It's a scary feeling to shove the plug completely past the sphincter (head, shaft, and base) and have the sphincter close tightly with the butt plug inside. Never do this without an adequate length of leather strap or other cord tied to the plug and a length of strap remaining outside the anus. Otherwise, if you fall asleep, the plug will just travel deeper and deeper into the rectum, on into the sigmoid colon and make its way high up into the gut. If you don't have a strap on the plug, you will be making an emergency-room visit.Nor would I depend on the base being the right design to ensure that the strap doesn't come off, which is why I use a ring base. I can loop the strap inside and around the donut so that it doesn't require even tying.
See the picture of my butt plug in the upper right hand corner of this page. Yup, that's my butt and my Icicles #14 glass plug showing. I'm writing this, because today, I'm allowing the whole plug to reside in my rectum. I've used a long loop of material to tie to the ring base. This is a different sort of plugging that I've occasionally done, just to see how deep the plug will go and to confidently leave it there, until I get the feeling that I might need to have a bowel movement—trying to anticipate acting before it becomes a struggle to get the plug out clean. Oh, yes, if you live plugged you will also have to simply learn the facts of life and deal with the brown stuff occasionally.
I know, I've seen lots of videos where guys stick apples and oranges and bottles and other things in their asses and allow the sphincter to close around them, and there is probably some safety to the idea that with enough lube and an ass where you can easily insert your own fist if need be, you can just grab that apple and bring it out in your hand—if you have to. I simply don't have that loose of an ass, nor do I want one. But it's fascinating to see guys doing this. Others have gone to the emergency room with crosses and guns and kids' dolls stuck in the ass. And we all know where drug mules store the drugs they're being paid to smuggle out of one country and into the next.
But I digress. I like the feeling of letting the entire plug travel around and sight see in my gut. There really isn't much feeling once the thing is buried deep, however. It's just the enjoyment of an edge of danger (spelled embarrassed) added to plugging.