It started when sis caught me masturbating on bed. Later mom caught us both. It is the continuation of my life which I submitted "With Sis" on 15, November,2009.
Mom was cool about masturbation. I and sis used to kiss each other in front of mom. Dad was on an office tour that weekend. I reached late at evening after playing baseball at college. I had my bath and went to living room where mom and sis were watching movie. Mom was sitting on the chair. I sat beside my sexy sis on the sofa which was a couple of feet back of mom's chair. Sis was wearing a t-shirt with no bra. I could see her pointed nipples. I smiled and kissed on her cheek.
Time passed and we were at the middle of the movie when a hot scene was on it. Two couples were making out in the movie. I could not resist my lust. I grabbed my sis and started kissing her. Sis stopped and said mom is there. Mom knew about our masturbation sessions, so that was not a problem. Sis said we should not disturb mom. I agreed and kissed without making much noise. I removed her t-shirt and started playing with her breasts. I took off my trousers. Sis and I were in our underwear only. Sis got hold of my underwear and started licking over it. I was awesome. It was like an oral. My underwear was wet with her saliva. It was a fantastic feeling. After minute we changed positions. I started licking her panty. She was oozing pussy juice and it made her panty and my mouth wet. Sis moaned but the voice of the movie was a bit high. The licking was going on for five minutes and sis came to orgasm with throbbing thighs and this time she moaned too loudly. Mom turned around and was again shocked at our boldness. She just slapped me butt saying dirty kids and went on to watch the movie. We just carried on and this time we made noises. Mom could hear our kissing and sis was restlessly moaning loudly. I took two fingers and went deep inside her pussy. I fingered her until she came again. Sis caught her breath for a minute and grabbed my dick. She jerked with her pussy juice and her mouth was almost brushing my dick. I could feel her warm breath over it. It was too much for me. I came and cum was splashed over sis face.
We both had a bath and came to dinner. Mom was sitting silently. I asked what the dish was. Mom replied we should do it more discreetly as dad would not understand us. That was true. Dad was like old time guy. He did not like masturbation. Even mom does not masturbate in front of him. It was sad to know. But we said to mom that she could masturbate with us. She said nothing, but I know some day she will join us.