I had two questions about this, one Anon and one not – so I’ve chosen to answer the Anon one in case the other was meant for private conversation.
So the best possible way I have found to wrangle the FreeTom is; a snug pair of briefs with a fly hole… the one you can poke your dick through. Put the prosthesis against yourself, slip the shaft through the snug briefs hole and then put your regular underwear over the top. I know it’s not ideal because there’s two pairs of jocks – but it’s the “safest” and most discreet way I’ve found to pack with the FreeTom that still allows STP function. In fact, I find when I do this I don’t actually have to hold the prosthesis to me when I pee – the snug underpants do the job just fine. Adjustments may be had throughout the day if it slips a little – but bio guys have to adjust thier junk too.