Mom Bonds with My Girlfriend

On the first date, I was transparent with my gf (same age as me) about my open family. She said that it was kinda hot cause she liked wearing little to no clothing at home but her parents were strict, so she lives on her own now. She wanted to be over at my house more because of my parents having a pool and a privacy fence. This was about a month after dating. She came over to sunbathe topless with me on a beautiful warm day. My dad was at work and mom was in and out, but both were aware she was over.

She dropped her backpack and instantly took off her tank top after coming in the door. We made out for a bit as she fingered my smooth pussy and I groped her tits. She then headed out to the deck and the lounge chairs, I got some drinks ready for us to enjoy. I brought out the drinks and she was already relaxed in a lounge chair. I teased her nipples with one of the cool glasses and she teased my pussy lips with her fingers. Then I relaxed in my own chair, which sat close to her, as she continued to give relaxing touches to my legs. She confessed this is the most exposed she's ever been outside of her apartment and that this was such a good feeling. 

Then, out pops my mom saying hello and in a swim suit herself with her drink in hand. My gf was a bit startled and covered her nipples in an arm bra at first. My mom reassured her that she didn't need to be shy. Mom greeted me with a small kiss and copped a feel of my tits. My gf said, "You really are open, I love it!". I turned and looked at my gf with her arm covering her boobs, as my mom caressed and felt me all over. Then my mom went to her lounge chair to relax with her drink, and I relaxed in my chair.

I was telling my gf about the amazing boob massages my mom gives and my gf finally exposed her breasts and asked if my mom could give her one to help her relax and be more open like we were. So, my mom put her lounger behind my gf's lounger and started to massage my gf's shoulders. She confirmed with my gf that a boob massage is what she wanted. My gf laid all the way back as my mom started to gently grope and massage my gf's breasts and tease her big nipples. Leaning forward, my mom's breasts were swinging around my gf's face. I then reached over and pulled one of my mom's breasts from her top and let my gf know that she could suckle on her breasts as she is receiving the massage.

Then I laid back in my lounger while rubbing my pussy, in amazement watching my mom bond with my gf in a very unique way, yet a way I am definitely familiar with. I rubbed myself to a beautifully relaxing orgasm.