My mom and dad have always been sex-positive and open-minded when it came to relationships, lifestyle, sex, and so on. Some years ago, they opened their marriage. It was one evening when mom and dad invited me to join them in a discussion on the balcony. They informed me from now on they'll be dating others and assured me it's just to spice their marital life and I don't have to worry about their relationship. Mom and dad emphasized that they love each other dearly and in no way they're going to separate. From now on they'll bring home new friends and stay the night with them and they felt like I should be informed of their decision.
On the weekends my dad spends his time with his new girlfriend. I don't know much about them.
And, about my mom, after that day's discussion, mom has been spending some nights out of the home. Initially, it was on those weekends when dad was with his girlfriend. I think mom was hooking up with someone on those days. Whenever mom stayed out for the night, she would call me to inform me that she was staying at this hotel, the hotel room no. and the booth no. so that in case of emergency I can call her. Mom is always very caring and I love that about her.
But, these last 3 weeks, something different is happening in our house. My mom found something new that turned on her interest. She now has a regular, fuck buddy I guess. His name is Alex, 28 years old, 3 years older than me. 3 weeks ago mom invited Alex home and introduced Alex to me. He's an average-looking guy but has a well-toned muscular body, I think he goes to the gym regularly. Mom, me, and Alex had dinner together on that Wednesday and after dinner mom informed me she was seeing Alex and shyly said they're very close friends. Alex told me he's very fond of my mom and wants to know her better. It was no big deal to me so I said something like: yeah guys have fun I've work to do.
That night was the first time I saw mom taking another man to our parent's bedroom. At night I could hear soft moaning sounds. Alex stayed with me and mom the next day and left for his home on Saturday night. In those days, mom and Alex were very discreet and never did anything openly.
But, last Wednesday when Alex came home he was kissing my mom openly in front of me. Mom was hesitant at first for like 3 seconds and then gave in. I don't know why felt like Alex was intentionally making me watch. But it felt good you know. I love my mom very much and since she was happy I was cool about it too. That night Alex wanted to watch a movie with us. He insisted that I will enjoy the movie. All the while watching the movie Alex was kissing mom passionately, sometimes groping her softly, other times hugging her tightly. Mom was embarrassed and so was I. I was at first feeling a bit icky but then thought fuck whatever, it's not like Alex is forcing mom, they're friends with benefits. Then started heavy petting. Alex was asking me what I think about the movie's certain actor all the while massaging mom's stomach. It was as if he was enjoying making a show of "Look boy I am seducing your mom". Alex is just 3 years older than me and in the past few weeks, he and I became a lot close. When the movie ended, Alex told mom he forgot to buy condoms and asked her if he could give me money to buy some for them. Mom was so embarrassed, she was facing the opposite direction of me without talking to me. Alex then gave me the money and politely requested me to buy his favorite brand's condom. I was just smiling sheepishly and did as he said. Alex wasn't forceful at all and asked this as a friend and mom wasn't protesting even. I didn't see any reason to decline Alex's request.