I disagree that "all men look at boobs".
What a load of rubbish.
A lot of men actually have respect for their partners.
Sing it!
My FH is a boob man but there's just no way he'd have a picture of my sister on his phone so he could look at hers. It just shows a total lack of respect on your FH's part, to you and your sisters. How did he come to have the picture(s) in the first place?