Surprise vs Planned

I want to get everyone's opinions on whether surprised or planned pegging is more exciting and practical. I'm just wondering what works the best for you. Obviously each couple has their own preferences, which is why communication is key.

I have come home to my wife wearing the strapon, but it means I then need to go into the bathroom to prep, and that takes some time if I do it right. Having sex immediately after prepping also makes me a bit more sore than had I had time to wear a plug.

Planning it does remove some of the instant excitement, but the anticipation can be fun. My wife works from home, so I don't usually have a chance to prep if it's a work day.