As a man I think the whole thing is about, 1. Trust 2. Surrender 3. Fear Can I surrender control to her and trust that she will calm my fear enough that I can enjoy what she gives me.
Suppose a lot of peoples biggest problem with “pegging” is they see as a sign of repressed homosexuality on the part of the man(i.e a desire to be penetrated by a penis even if its artificial) and penis envy on part of the woman. I'm not saying I share this view I always try to keep and open mind on these things and consider all view points.