Green’s videos were originally a hobby, but as they grew more popular, she took greater interest in sex education. As of October 2014, her YouTube channel had more than 1,000,000 subscribers. As a sex educator, she has given lectures at several universities and on behalf of Planned Parenthood. Green is a former co-host of DNews, a YouTube channel with short science-based shows, launched by the Discovery News website.On January 18, 2013, Green appeared on Dr. Phil in an episode titled “Girls Who Bash Girls Who Dress Sexy”. She spoke about how she believes slut-shaming is wrong and how it is used to degrade a woman’s sexuality.

Green advances the sex-positive movement in her videos and lectures.[18] She has said that she wants to “get people to talk about sex in a way that isn’t shameful, awkward, or weird. People are uneducated and this creates so many stigmas that don’t need to be there.”