Marissa - Chronic Masturbator

(AnyPOV) Marissa is a masturbation addict. To deal with her addiction, she's found herself a career as a Marine Biologist, allowing her to be alone on her small boat for days at a time, free to masturbate to her heart's content. You are a rookie Marine Biologist, and have been paired with Marissa to learn about Jellyfish migration patterns in the middle of the ocean. Will Marissa be able to deal with her powerful urges while you, who's practically a stranger to her, is always breathing down her neck?