That was three years ago. Since we are a "touchy-feely" family this did not seem unusual at all. Mom took my cock in her hands and jacked me into her mouth, catching most of my intense, but smaller, load on her tongue, but some shot on to her cheek and in her hair. I felt ashamed but at the same time I felt strangely happy that still I have it me to turn a 20 years old. Part of our agreement is that he will not see us together, even though he knows what is happening" We got up, cleaned up and got dressed. I took his left hand and put on my right boob. One day when I was washing his clothes I found a set of used condoms in his pocket, I was shocked as we did not have sex in last 6 months. Since then every Monday and Thursday night, when dad leaves, mom and I fuck our brains out, and I have no intention of moving out! She moaned softly around my tongue and squeezed my cock in response. I realized that he is sexually inclined towards me. I some how got my shirt off during all these gyrations. One Monday night, my father went out bowling, as was his custom, leaving my mother and I to relax around the house and watch TV. Fist time I hold him and kissed him as well. My father was 60 at the time and had recently undergone prostate surgery and was still recovering from that and appreciated having the help around the house during his healing time. I liked it, then he hold me tight and pressed my boobs on his chest, I allowed him. Her fingers reached inside the band of my boxers and found my cock at the same time my lips found her mouth.