Smaller Panty Size Than Wife - so humiliating!!!!

Wifey and I bought panties thru Amazon. She's petite and in shape, so she wears a small. I'm slim fit, so we both thought medium would be better for me to account for my bulge.

As it turns out, my bulge is so tiny, the small size panties fit me better and the medium size panties fit her better. So humiliated and turned on!!!