She had warned you of the risks but you said it was fine. Afterall , you were just sleeping in the same bed as her. Yet she was adamant that you had to be careful, apparently she had lost many friends this way. She had even tried to get them out but something changed them once inside.
The night had started smoothly with you laying next to her. Then around midnight it happened. A gooey warmth spreads up your ankles. You were too tired to notice until the warmth had reached your waist. by then it