I found a bug where you can still play lewd decks in the game fanboy69 shop. Have a lewd deck as the first deck and make a normal one as the second deck. Select the second deck to play and challenge one of the two people available to play against. The game will play out as if you were playing the second deck which you chose to play. However the game always plays the first deck and only the first deck. If you get a lewd victory then the picture of Nat cumming on the floor will display and won't go away even when you transition into a different room. As a side note when you play a strip card you are stripping an invisible Nat and not the players in the fanboy69 shop.
I haven't had the shred clothes bug so far. I have 4 in my lewd deck and a mating press. I find that once Nat is almost naked except for one piece of clothing the mating press takes away the last piece of clothes and checks if Nat is naked. If she is then the rest of the mating press activates and you win!