Bushman is asking if there is possibility that due to the practising anal sex his sphincter loosens to the point where he will not be able to retain, where he would eventually end up being in the diapers.

My belief is that with sensible practise of anal sex that should not happen – as long as you do not cause damage to the sphincter like tearing it and/or do not practise extreme stretching for long periods of time (like fist sized but plugs) you should be fine.

I was following this thread with interest and was hoping one of the more medically qualified members of forum might give us some insight – but, unfortunately so far – no luck.

If you think about it – during normal recourse of biological functioning (and not to be disgusting but…) things of similar thickness often end up going out that way. So my conclusion is that sphincter is elastic enough to stretch that much (and a bit more) and still retain strength to close.

On the other subject – unlike lucy I always found the doggie style to be most comfortable. The key (in my opinion) is to be excited high enough, to want it and to be able to relax and accept it. And … USE A LOT OF LUBE!!!

Good luck and have fun all