Shelley Simon was a Tree Hill High student and the founder of the Clean Teens group. After falling pregnant and having her heart broken, Shelly became abstinent and formed the group. She had a relationship with Marvin McFadden during her senior year but she broke up with him after sleeping together because of her being "the" Clean Teen. After graduation she returned, having dropped Clean Teens and decided to just be herself.
Before the Series
Shelley got pregnant after sleeping around at church camp. She secretly had an abortion. When confiding with Brooke about her decision, she revealed her deep regret doing it, telling her that once you do it "you can't take it back" before running off in tears. She had a serious relationship with someone over the summer, eventually, however her parents stopped her from seeing him and after the summer was over, she saw him with his new girlfriend. He completely ignored her, causing Shelley to create Clean Teens.
Shelley was the leader of Clean Teens and after hearing rumours that Brooke was pregnant she tries to recruit her. While Brooke and Rachel were stealing test answers from the school at night, Principal Turner caught them and they made up that they were there for a Clean Teen meeting. She also dates Mouth.
- Marvin McFadden
- Start Up: "Pictures Of You" (4x13)
- Broke Up: "Prom Night At Hater High" (4x15)
- Reason: After having slept together, Shelley didn't trust herself to stick to her Clean Teen values around Marvin.