The general rule of thumb for me in the PVR clubs:
How much is a basic tip, I guess for sitting with me 10 minutes?
For sitting in public for 10 minutes chatting/feeling - $200-300MXN depending on how interactive.
For the shower show?
$20MXN minimum.
For touching fondling groping?
In public and only for a minute or two - $60-100MXN.
In private and as part of an arranged meet (private dance) - $300-500MXN.
Kissing?
Not sure, but that would probably start at $500-1000MXN depending on the venue.
Sucking him?
Not sure, but probably looking at $3000-5000MXN territory.
Him being interactive
Again, depends on the context. Feeling up with groping and kissing in public areas of the club I would guess would range at $500-1000MXN. If in private, looking more at $3000MXN and up.