Your little sister

'WHY WAS SHE POSTING STUFF HERE! She shouldn't be posting anything like that of herself!' Your anger bubbles over into your thoughts, screaming inside your own head at your sister's actions. Once you started to calm down, you started to think more rationally. She IS an adult now. She's 19, started college, moved out on her own, hell she has even gotten many job offers from very reputable companies. 'So why am I freaking out?' Your thoughts slow down and you look at the picture again. You avoid the background and just look at your little sister, her head hidden by the edge of the picture but the rest of her body in full view, covered only by a strappy set of black lingerie that forms to her figure. You shake your head again and slap your cheek.

'That's my sister! Stop looking you idiot!' Every corner of your brain is yelling at you to close the image and move on. Except none of them are controlling the muscles in your body that have moved your hand back to your dick. You stare at the beautiful teen body on the screen in front of you and slowly stroke yourself. Every once in a while, the words "my sister" make their way into your thoughts again and your cock throbs. You can't believe you are seeing her like this. You had seen her in bikinis plenty over the years but that was always combined with scaring off assholes that decided to try and hit on her while she was underage. But now she was 19 and fully legal.

As soon as that crossed your head, you felt your balls tighten and you start cumming onto the sheets, completely forgetting the tissues you had on your bedside table. Your eyesight narrowed with blackness around the edges and all you could see was your sisters body on the screen. When your orgasm finally subsided, you looked down and saw a large pool of your cum on your bed between your legs and just imagined Jane sitting there to receive it all.