Fucking the Family

I'm George 27 and I've a girlfriend Kristine 22 and we've been fucking for while now and I was starting to think of asking her to marry me. When I was staying over night at her home and fucking her and her sister Janice 24 came in and joined us in bed for sex also. I was was a little shocked at first, but why not if she is willing and it didn't bother Kristine. I had just finished Janice when Carol 41 divorced their mother came in stark naked and wanting to join also. That Night I was totally drained by the 3 of them and was also fucked again in the morning. This group sex became regular for the four of us and became normal for me to fuck whoever was willing anytime I was over visiting them, I asked Kristine to marry me and she agreed and we're marrying in April.