Having read through this thread, imagine my shock that Colonel J made the best prediction in this thread and he made it first: that nothing will happen to either of them legally.
Anyone who takes some minutes to research some things will realize all the content we saw is "grey area", aka schrondinger's CP: nobody including the feds actually
know if it is or is not CP until the content is put in front of the court for determination. As it stands even an image of an underage and naked individual is not sufficient to be CP though anyone with a brain can tell that's a stupid legal knife's edge to play with because it's also not confirmed to be "not CP", so if the feds want you for something, don't be shocked if grey area suddenly morphs into CP charges if only for plea deal negotiation leverage.
Bottom line: charging someone with CP possession for grey area alone takes real effort and time, whereas charging for something with obvious underage "explicit sexual activity" (what the law actually says) does not by comparison. So...the feds taking the time to actually build a case against two obvious speds with nothing but grey area is laughable unless there's something else the feds really want them on (think Al Capone going to prison for tax evasion when they really wanted him for the shitloads of murders he ordered and the criminal enterprise he ran). Failing an Al Capone-like situation...it ain't happening.
None of this should be construed to imply this stream wasn't a terrible idea, messing around with grey area is fucking exceptional and doing so publicly is on another level entirely.
Now, since I've seen a bunch of cross galaxy legal reaching going on I'll do some of my own for shits and giggles since I didn't see anyone mention this curveball: United States v Williams ( 2008 ). That case raises some interesting implications for Twoon et al. especially that also aren't happening but are fun to muse about.
