I hardly doubt there’s Caleb material out there.
They were old enough to know better when they hit it big.
the only one was Jared of which I remember there were some pictures of him back in the day in underwear in hotel rooms. No nudes. He was the youngest of them all, thus the one who was allowed to get crazy with fans and groupies alike.
más for Caleb, I remember reading or watching an interview where Nathan said he was the one making sure Caleb used conforms whenever he hooked up with fans. Obviously this was long long ago, before he met lily so that over 10 years ago. Now they all married with kids so I doubt anything will leak.
all we have are some stories from forums and blogs back in the day where some fans shared some of their stories with the band.