How far does the dildo/penis need to be penetrated inside the anus until it causes damage to the bowel/colon. How risky is 3 or 4 inches and it was a banana?
you put a banana in your ass it should not cause any damage unless you scratched you as you where useing it i put a lot more than that in my wife and it dose not damage her bowel
As long as its not causing pain, you can go pretty deep. If you start to feel some pain, you might wanna back off, but, just a bit :0)
3-4 inches? You have nothing to worry about with that. I'd be more worried about having a mushy banana in my bum.
I'm 7.5" and used to "bottom-out" in my wife's vagina. I've never had an issue with going too deep in her ass. Believe me, I've tried. We have a 21" double headed dildo. It's somewhat slender, but I probably got 18" or better in her bum.