Quoting M. Johnson:" So I'm reading these post's stating that 'I've been with my SO for 2,3,5,7 years' even and after a while ... [snip!] ... quickly, but extremely hard! I know that was a bit of a TMI but I tried to censor it as much as I could...sorry ladies..."
I think you did a fantastic job conveying it and congratulations on being open and willing to push your boundaries to satisfy your partner! As far as being TMI, I believe that anyone reading this line of blog should definitely expect TMI, otherwise log out and go read REDBOOK...LOL
My wife loves anal on an occasional basis and she has much harder orgasms through DP (Double Penetration). I even bought a special dildo with a cockring at the base, to give her that sensation.
I will add however, MEN THIS IS FOR YOU!
If you think for one moment that it's possible, go that afternoon, get a manicure. Her internal tissues are extremely sensitive and tender. You do not want to cut or scratch her back there.