If pegging were done within Devotional Sex it would look much closer to this than the way it is usually shown on the internet. This is a shared experience with connection instead of strong female domination.
With Devotional Sex pegging can only happen if this is something that he is willing (or very keen :) to do. Once this is on the table as a possibility it is then up to the Princess to decide whether pegging never happens, sometimes happens, or often happens.
The couple both sucking the toy in the first frame strongly suggests to me that she is in control. Making him suck the toy is a great way of building anticipation for what is going to happen.
And her also sucking the toy shows that this is going to be a shared experience - though she is in control she isn’t acting or feeling dominant.
I hope this post inspires a few couples to give this a go.