MILF wanted to do anal for the first time..

I have a girlfriend (and my wife knows nothing about her) who wants to try things that she always wanted to do... and one was anal.. She had used a dildo in her butt but wanted the feeling of a ribbed, 8" thick cock deeply inside of her dark tunnel.  After we met a few times, I gave her a dildo that was the size of my cock so that she could get used to the size and thickness and she did it every day.  Finally, we met at our hotel and she wanted it... badly... She had douched and it was clean so I filled her and my hard cock with lube and gently rammed it in doggie as she almost came immediately.. I reached around and played with her clit at the same time till she came and almost blew my cock out of her butt.. but I wouldn't let her.. She fell flat on her stomach as I continued to pump her ass as she quivered and screamed my name as she came hard..Now we just have some fun doing it and she loves it... me too!!!