Dad's massage ended with his cock in my ass

Dad had a sore back and i offered to give him a massage. he has always been good to me and i wanted to do him a favor but he got out of hand. my hands went to his ass, i began to massage him in a sensual way and he got hotter than he should have. total that without realizing it we were fucking like two crazy people. i loved him, it shows that he is a mature and experienced man, who knows how to fuck an ass properly. now the problem is that i want more and of course, we are talking about my father!