What monkey-slave suggests would probably be a /real/ punishment--an actual deterrent. But mostly I think when ppl use the word 'punishment' they really mean a difficult challening that is still a turn-on, that the receiver will seek out again.
If you're looking for a non-physical fun/turn-on punishment... that's tricky one.
Also please tell us the purpose of the question: Do body-positioning, etc. can count as physical? Or are you looking for anything that'll work long-distance? On the phone?
Variations on the get-turned-on-but-not-allowed-to-touch-self theme would depend on what nonnphysical things get your sub steamed up... Maybe if sub is aware/you/ are masturbating?
Social embarrassment with attractive strangers:
- not allowed to speak to any stranger sub is attracted to (so have to just nod, shake head, in response to pleasantaries from a shop assistant)
- go to a supermarket and only buy 5 things that can be used for insertion, 1 thing that can be used for lube, and one other mysterious unlikely item like... sellotape? notebook and pen?
Sub must keep a diary of ideas for challening physical punishments (written in public? with pictures drawn in public?)
