There is a school of thought that it’s impossible to be on the receiving end of penetration and remain dominant. This teachers of this school are very stupid. No single activity is inherently dominant or submissive. What matters is the context and the dynamic between the participants.
I actually had a dominant express this thought to me last year, and to my everlasting shame I didn’t challenge her on it. I should have said that she absolutely had the right to draw her personal boundaries wherever she felt comfortable, and define activities however she thought was appropriate, but there was no single global rule about what penetration meant. Unfortunately at the time I was horny, naked and starved of kinky play. So I think my answer was along the lines of “Errrm…. Yeah. I guess. Sure. So when can we start with the beating?” Not exactly my finest hour. I did get the beating, so that was at least a plus, but I felt bad about it afterwards.
I believe this is fan art inspired by a series known as Tower of God.