Stepsister's plus-size body makes it challenging for her to enjoy sex

This is a true story about a girl who is struggling with her body image. She's a bit on the larger side, which is making it difficult for her to enjoy sex. Her stepbrother has noticed this and he's determined to help her overcome her insecurities. He suggests they try something different, something that might help her feel more confident. He proposes they role-play, with her wearing her white uniform, the one that makes her feel sexy and powerful. She's a bit hesitant at first, but she agrees. As she puts on the uniform, she can't help but feel a bit better about herself. The role-playing leads to some steamy action, and she finds that she's actually enjoying herself. The experience helps her feel more confident and comfortable in her own skin.