She didn't tell anyone and kept it in for 5 days eating all the things that made her need to poop. It's lucky she had the highlighter idea because when she needs to poop she will push without realising.

Walking home all she could think about was pooping and how good it weirdly felt to have something shoved up her ass. When she got home, her dad was at work so she was home alone. She got in the empty bath and thought about whether she should do it or not. She took out the highlighter and threw it away

She was wearing tight light blue jeans. First she peed. Warmth filled her whole body as she relaxed. "Why was I so scared" she said to herself. Then she squated down and pushed. She pushed more still peeing and a brown lump showed up on her pants. She thought it was over but then she pooped more making it go down her leg. She sat down and just let it happen. "I should try more of their activities"