Hmmm.
From my point of view that is just not on.
I think we're all open here about being with other people but a huge part of that is total trust.
As Savage Garden told us "trust is more important than monogamy".
To me, that sort of secrecy is a huge red flag.
I would be making it very very clear that this is the first and last time and there are no more chances.
Unless of course that's your kink and if it is then enjoy it.
