Last spring I moved into my own apartment, and a few months ago my mom came over to stay the night with me. We spent the day together and did all the mother-daughter stuff, but when we were going to go to bed, she said she would stay on the couch. The air conditioner is in my bedroom window, so I told her we should just sleep in my bed to stay cool. She agreed and we got ready in our night shirts and turned off the lights.
Some time during the night, woke up feeling horny. I hadn't been laid in a few months and hadn't masturbated in a couple days, so my pussy was really feeling itchy. I wasn't sure about doing this next to my mom, but I figured she was sound asleep so I decided to go for it. I pushed my panties to my ankles, lifted up my shirt and started rubbing my stiff clit. It felt so, so good I kicked them off then threw off my shirt and started digging in my aching pussy, stopping myself from screaming. After I came once, I couldn't stop and had two more incredible orgasms. I was so relaxed I didn't want to get dressed, and since my mom didn't wake up I just pulled the cover over me and fell asleep naked.
The next morning when I woke up I heard a funny noise, and when my eyes focussed I saw it. There was my mother with her hair in a towel, standing in front of my full-length mirror, bare-ass nude with both hands between her legs. I could see her front in the reflection, and her breasts still looked full and she had a large bush as well. All I could do was stare with my mouth hanging as my own mother was masturbating right in front of me, now with her head back and breathing harder. When she came, she started shaking and let out a low grunt, the kind you make when your orgasm comes from deep, deep inside. She took off her towel and wiped herself off with it, slid on her bathrobe and walked out.
I gave it about 20 minutes then put on my robe too and walked out to the living room where she was sitting on the couch with her feet crossed on the table with her coffee. I grabbed some coffee as well and sat with her, propping my bare feet up next to hers. We talked for a little while but when the conversation slowed down I told her what I saw, but all she did was say she did it all the time, then smiled and said she knows I do it too. I could feel my face getting red because she heard me the night before, but that got another conversation going about sex and masturbation, and somehow that conversation led to both our robes being thrown open and fingering our wet pussies until we had a couple more toe-curling orgasms.
That was the only time we ever did anything together, but after that we did have more conversations.