The other night while edging in sissy mode my big sister and her friend started fucking in her bedroom, they try to be quiet so our parents dont notice anything but i can always hear since im in the next room over.

I had my door locked, wearing a pair of my sisters used panties while sucking a dildo under my blanket when i started to hear the bedcreak through the wall, this made me incredibly hard. I kept sucking to the rythm of the wall until it stopped for a while and i heard them go downstairs and walk out the house.

As soon as i heard the door shut i went over to her room where i found the condom sitting in her garbage can. I carefully picked it up so nothing spilled out and ran back to my room, locked the door, and gave it a look. Her friend must have been huge because the condom was almost completely rolled out. There was a decent amount of cum pooled up at the bottom and along the sides, and the smell of sex coming out of it made me leak even more precum.

I stuck my tongue in it and felt shivers down my back as i worked the condom in and out of my mouth, i went deep enough to feel his load at the bottom and started swirling it around my tongue. It felt so hot knowing my sister probably got to taste the same nut at one point, and this was literally just inside of her. I took my tongue out from the inside and sucked the outside of it once just for good measure.

At this point i could resist cumming so i took the used condom and put it on my own co. I went back to sucking my dildo while grinding into the condom and feeling the cum swish against my shaft sent me over the edge. I started pulsing and filled the condom with some of my own nut, which i then took off and drank everything that was in it. 10/10 would do again