Oh man what if you took this idea and kind of turned it into a giant board game style maze, like to advance you need to draw cards that give specific sexy instructions like, 'You both must wear maids outfits and do it doggy style to advance three spaces!' or 'Fellatio for exactly two minutes to advance to Park Ave' or 'Go to Jail, get out by dropping the soap!'

The two muns threading would take turns 'drawing cards'.