My Dom is very into fisting and it's not something I've ever done or thought much about until now. The problem is... I'm super tight, I've been told I have the tightest vagina outside of a virgin my partners have ever felt. I've always been this way and even though it causes me a bit of discomfort without some prepping and stretching before sex I'd like to keep it that way and occasionally do kegel exercises.

So I'd like some tips on how to prepare myself to get fisted without a great deal of pain, as well as wondering about if this will 'stretch me out' too badly. As far as we've gotten is up to his last knuckles with four fingers but that was using a lot of lube and him wearing a surgical glove to smooth things along.