Oh well, in for a penny, in for a pound.
Article put me in mind of the potential for 'phone sex' style
apps: could be huge among idiots, but Apple apparently won't even allow
nudes on the Playboy app (giving a whole new meaning to 'only read it for
the articles'), so suppose it's 'fat chance' there.
An acquaintance engaged in the trade (and extremely cynical about it, as
you might expect) once went into detail on the required tools
(including a bucket of water and brick to drop in it, doubtless to simulate
a fetish too strange to consider, never worked that one out), wish I could remember
more of the description, but those (bucket of water + brick) were the star turns for
strangeness.