La tanga de mi cuñada....

My girlfriend is very strong. But her sister, she's a mess. In fact, the first time I went to their house and met her sister, she wanted to kick me in the balls. I said to myself 'the slut mother, why didn't I meet this daughter of a slut first'. But good, I don't complain at all. I love my girlfriend, although I must confess, I get distracted when my sister-in-law arrives... It's just that she has a face like a slut that makes you think only of a bed. A body like her mother's, from which the ass is a monument. In fact, every time I see it, I have to make myself terrible masturbation. Sometimes, if it coincides that my girlfriend and I go to bed, I put her in 4 and fuck her thinking about the ass of my sister-in-law. On top of that, since she knows how many whores her mother has good ass, she wears clothes that show it off fully, and always, always finds a way for what she's wearing to leave transparent the thongs she uses underneath. As I mention in my profile and some other post, I'm a fetishist. I get turned on by thongs. They're my weakness, especially when they're used. I've always hoped to have a thong from my sister-in-law. And it was given to me. A few days ago, she came home from work to visit us and since it was late and cold, she said she didn't really feel like showering when she got home. My girlfriend said 'take a shower here and you're done!' and she agreed. At that moment, although I don't believe in anything, I put my hands together with some higher power and asked 'please, let her leave the thong!', besides, she was coming from the gym, wearing black tights, divine. Said and done, after showering, I was dying of anxiety to go in immediately and check if she had left the thong, but I resisted. A little later she left. We had dinner and went to sleep. My girlfriend's sister, who always falls asleep first, that day was more awake than ever. And to top it all off, she was cold, so she put on a nightgown and leaned against me with her terrible ass well over my cock. I started moving to make her feel hard, and She told me 'it's the only thing that interests you? let me rest...' And I stayed there, hot thinking about my sister-in-law's thong and hot feeling my cock's ass. The next day, my girlfriend went to work, so as soon as I was alone, I headed straight for the laundry basket...to my happiness...there it was!! My sister-in-law's thong!!! Almost with desperation I took it in my hands, and I got an erection instantly...I brought it to my nose...and it smelled even tastier than I imagined in my head....it was paradise...that smell...the knowledge that that thong had been covering the beautiful pussy of my sister-in-law just a few hours before, up her ass which is hell....Almost died from pleasure...Obviously, I made myself a novel masturbation and couldn't resist cumming in it... When I finished, I did something I never do: I had to hide the evidence, so that day I washed the laundry. That night, when my girlfriend came back, she was so happy with this loving gesture of washing the laundry that she rewarded me with a good cock-sucking and afterwards, without taking off her clothes, she turned around and said 'make tiny ass for your slut...put all that beautiful cum in it and call it tiny ass...' And that's how it was friends.... This comes to prove that the law of attraction exists Thanks for reading me!!!! Here are the photos...