Ass gape

I always wanted to stretch my ass: Alone I used bigger and bigger toys but the results were poor. When I started to feel pain I used to give up.
Then I found out that a partner would help and I had several guys to help me. But even with help the results were far from my wishes.
One month ago I just met a sadistic guy with whom I have a very good relationship that offered himself to help me. And the results are fantastic!
With a sadistic partner I have my hole much bigger. He never ears my complaints, he just keeps on going. In one month my hole progressed to limits I tried for years without success. He just never gives up. If he decides a toy will go in, it will go in. Alone you stop when the pain arrives and with a "normal" partner (I had many) he gives up when you complain too much. This one NEVER gives up, he just insist and insist. He says that what can't be done in an hour can be done in two or three. He just doesn't ear my pleadings and the more I ask him to stop more he keeps forcing the toy in...