Ayude a mi mamá a ser infiel ( parte - )

A apology for the work that has become almost impossible to follow, but here I am and will try to be more active. Well, I've lost where I was going but to publish something, I'll tell you this part, I wanted to tell it in order as things happened but it slipped my mind or I left it out, this is almost halfway through the story so you can get an idea... We were alone in his room back then, I had a girlfriend but I still had the fetish for underwear, in my backpack I had a pink thread of hers, my mom was sleeping with her phone, she was wearing a white shirt and a type of buzo pants, her pants were getting caught on the elastic, it was a bikini type pink with heart-shaped ones... I don't know how but arriving at the conversation, in my backpack I have a thread from my girlfriend... I don't remember why I said... She asked me to show it to her and so I showed it to her, she told me if I could measure it and I said yes no problem. She measured it and told me not to look again, obviously I did, it looked as sexy as it fit between the buttocks and only the part of elastic was visible... After that we were talking about school and that had left me a task that my girlfriend didn't understand very well, but near where I lived there had moved a brother of a friend of my mom's, I don't remember very well but in the end he could help me with that... I told him and she said it in a coquettish tone to tell him to come and teach you and she did... I stayed thinking and told her if it was okay... I went to look for why I didn't have his contact but since we were friends (the sister had also grown up later, I'll tell that too) They said he would arrive in the afternoon and I said I'd come back, so I spent the afternoon and went and explained that he help me with the task and all that... We went and arrived at the house, it was clear they knew each other and were eager to, so he helped me and we finished in about an hour. I finished and told him I was going to play in my room and she said if son come, you can go where some friend wants if you want since you don't have tasks, it was It's obvious they didn't want me there, but I went to my room and left them in the living room... Until anxiety was giving me a hard time wanting to see what they were doing, I turned on the computer and put some music on high to cover it up... After a few minutes, I came out of my room to see and they weren't there anymore, making noise or talking in my mom's bedroom... but I didn't hear anything else... Then I slept for about 3 hours, I think it was night already and I was hungry so I went to find my mom, she was asleep in her room, wearing a blue shorts and black shirt, so I tried to make some noise... I entered and looked at her sleeping, wondering where the other clothes were... I woke her up and told her I was hungry, then I went to watch TV, she came down and made food for me... no doubt and I ran back to her room. I searched but couldn't find her until I went to the bathroom and there was her swimsuit, underwear and shirt... And the most curious thing as always, two condoms in the paper basket (if it sounds disgusting but haha) I took one out and spread it open, not bad at all, with a good amount of semen inside... No doubt and smelled her underwear and swimsuit... it smelled normal, slightly humid, sweaty and maybe fluids... then I left quickly so she wouldn't suspect... I don't know if you want me to continue in order or tell these things that also happened to me but was more occasional... Hope you like it, thanks for the wait.