의붓여동생 조슈아에게 인간 오르가즘 프로젝트에 도움을 요청하는 작은 의붓여동생 Mazy

Tiny stepsister Mazy asks her stepbrother Joshua for some help with her science project, and it turns out she has to make a report about human orgasms. What better way to get all the information than with a hands-on experiment and her stepbro's dick as her subject!