One could argue that it could come with orgasm (in many cultures, that'd be unlikely); I've known people with all sorts of definitions... a girl who had anal sex so she could maintain her 'virginity', for example. I think it comes down to what the individual decides - I think penetration of some sort could be argued as just cause.
M.
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My thanks to all the wonderful members here; I will miss the opportunity to continue to learn and work with you.
For those who seek an alternative, it is coming.
So long, and thanks for all the fish!