I've had this come up twice now - that Tinder matches ask if you've met anyone from Tinder, and if you say yes, ask if you're seeing any of them.

I've had first dates with 3 (and plans made to do more), and have seen one girl 3 times and fucked once, but it's all very casual so what would you say? I have some female friends I go for coffee with now and then? Lie completely- none of their business? Or be completely honest about it and if she doesn't like it, next girl?

It does seem to scare some girls off a bit.