My first time anal sex

We were fuckin' in doggy style. suddenly she start to screaming "Put it in my ass". This was my first time anal sex. i was little scared, but i start to goin in her ass. It was pretty tight. She was in pain, but she like it. After 5-10 minutes of slow penetratin, I start to fuck her pretty hard. before I was done, I tear down my condom and I put it right back in her ass. And then I was done... the best orgasm in all my life...