Most of the pictures I saw were of wives completely nude, yes they're sexy, make you hard, make you want to cum just thinking about how she would as you slide your cock into her pussy, I think the sexiest picture are when they're fully clothed or barely, just thinking what's under those clothes and imagining yourself undressing her or sitting back and watching her undress is what makes me hard, whether it's my wife or some other woman I like, my wife has taken many sexy pictures fully clothed that till this day still make me hard just thinking about what's underneath.