Caught by her mother

I had been going out with Sandra for about 3 years. She usually stays at my place and it is private. Sandra is 25 and i am 28. Our sex life is so good and she will try just about anything.
We went out to a club just around the corner from her house and at the end of the show we were a bit drunk and she asked if i would like to stay at her house. She told me her dad was away with work and her mum was out with her friend. I said it would be ok. When we got to her place i told her i wanted a shower so we both went and had a shower. We played with each other before she said she wanted to go to bed. We got dried and went to her bedroom naked and i had a hardon.
We laid on the bed and Sandra whispered to me she wanted to watch a movie. I told her ok so she put it on. I was surprised when it came on, it was porn and it was masterbating. We both laid on the bed and Sandra had her hand between her legs playing with her pussy. The movie had different people going for it. The one that interested Sandra was when 2 females and one guy going for it. After a while Sandra turned around so her head was down near my cock. She kept playing with her pussy up near my face and i was getting so turned on. I rolled on my side and started licking her pussy. Sandra started sucking my cock. I was loving her sucking my cock, she had it all the way in, the 1st time she had it so far in.
All of a sudden i heard a noise and when i looked up i saw Sandra's mother at the door. She was just standing there with a smile on her face. All she had on was a nighty. I pushed Sandra and she looked up. She then said hi to her mum. Her mum then walked into the room and sat on the bed. She looked at the movie and then back to her daughter. Sandra was still sucking my cock and when i looked at her mother i could see she had no undies on. All she did was sit on the bed and kept watching us.
After a while while Sandra was sucking my cock i decided to lick her pussy. As i was licking her Sandra stopped sucking me and started moaning a bit and then she started sucking me. It was not long and i looked at her and it was not Sandra it was her mum sucking my cock. She had swollowed all my cock down to my balls. It was not long and i cum in her mouth, she swollowed all my cum.
Sandra turned around next to me and Sandra looked at her mother. Her mother stood up and took all her cloths off and sat back on the bed. she took hold of my cock and played with Sandra's pussy. She looked at Sandra and then said she wanted to watch us. Sandra sat onto of me, looked at her mother and then fed my cock into her pussy. We slowly started to fuck. I felt a hand on my balls and then on Sandra's pussy. It was her mother. I was getting turned on with her mother watching us fuck. It was not long and Sandra cum again. After she cum she got off and laid next to me. Her mum sucked my cock again as i kissed Sandra. All of a sudden i felt someone sitting on my cock, when i looked it was Sandra's mum. She slid straight down my cock all the way. Sandra just watched as she moved up and down my cock until both of us cum.
Her mum got off my cock and just looked at us.
Sandra then said she was going for a shower so we both got up and went for a shower. In the shower Sandra said we needed to talk. She asked if i enjoyed and i said i did. She then told me she had asked her mum if she would join us and she said she would love to. I asked Sandra if she liked it and she said she had wanted to do it for a long time.
Sandra then asked me if i would go back to her room and fuck her mum again, just think it is her. As i was thinking her mum came into the shower. She got in with us, kissed Sandra and then me, Sandra left the bathroom and left her mum with me. We kissed some more and we touched each other until i slipped my cock into her pussy. I pushed her onto the wall and fucked her hard. She enjoyed it and told me not to stop. As i was fucking her Sandra came back into the bathroom next to us. Sandra told me to fuck her mum hard and not to stop so i did.
That night we all slept together and in the morning i woke up to both of them sucking my cock.