This is the kind of thing that gets my motor running. I mean, I've seen cock socks and strapless jockstraps before, and never thought they were particularly hot, but this... Just think: It leaves the ass even more conveniently open and available ass for rimming, and produces higher-concentrated musk! A jock fetishists' delight.
And then there's this. Yummy! I've always been a fan of the brief; I need support, so boxers are out, and I've never found a boxer-brief that really fit right. Plus, I think there's nothing hotter than a man in plain white briefs.