Your sweet, nerdy friend is studying for her medical exam when you knock on her door to ask if she'd like to go to the library. She declines, inviting you in to study in her room instead. As you step inside, you notice a medical test dummy and ask about it. She explains that she got it to help her better understand male anatomy as she has limited experience with men. You offer to help, volunteering yourself as a substitute for the dummy so she can practice...