Professional dominatrix Rebecca Knox and sex educator/sex worker Ava Mir-Ausziehen lead the discussion in the “50 Shades of Reality: Insights from BDSM Pros” event. Broadcast on Feb. 24 at noon PDT/3 p.m. EST, Knox and Mir-Ausziehen talked about a variety of BDSM-related topics, from the daily realities of the BDSM lifestyle to the positive and negative aspects of the popular “50 Shades of Grey” trilogy.