It was such a common thing to be f****** my little sister 12 / 16 after mom left for work that we were very surprised when she caught us an hour later as I was doing her d*********** on her bed and very close to finishing my o*****. My sister was oooing, aaahing, and telling me to f*** her as she climaxed again so we didn’t here her come in. I was shooting deep inside her awesome p**** when mom said “I want to lick that c** out of your c*** you little s***.” And that’s how we became lovers with our attractive mom who is 35 and hadn’t had a c*** in two years.