What are you doing step bro? is a quote from several adult entertainment movies, that are revolving around the trope of step siblings.
The question is often parodied online, in memes as well as TikTok clips.
Several of those movies are based on the fetish of step siblings having a sexual relationship.
The phenomenon has been parodied for years, as of March 18th, 2021, appearing on Twitter as early as 2018.
The meme started to be truly popular, after several TikTokkers made skits with “what are you doing step bro?”.
Another format of the meme is captioning images of objects penetrating each other, with captions like “what are you doing step ladder?” or “what are you doing step jet?”.
- Know Your Meme – What Are You Doing, Step Bro?