Your friends think you're lucky to be married to such a beautiful woman, assuming you have amazing sex with her. They're right, of course, it's just that what they imagine isn't quite your reality.
See, they imagine themselves (men) and how they would react to coming home and finding their wives dressed like this (they'd fuck them. Hard and fast like men.)
They don't...can't imagine what you do (crawl across her legs for the spanking you've got coming and hope, HOPE she spanks you long enough so you can hump her stocking covered thighs until you cum between them.)
Just a different perspective, that's all.
A man's versus a sissy's.