Okay I met this HB9 at colleague's birthday drinks. She doesn't work with us but was invited by a colleague who works with us.

So the whole evening she's completely holding court with 5 guys around her the whole evening.

By the end of the evening I had my opening...and pow!! Within 5 minutes she's hugging me and got her Blackberry out and asking for my email much to the amazement of every guy in the bar.

Now all is not what it seems. The way I DHV'd her was by speaking in German (she's half German) and stupidly mentioned that my missus is also German! I'm in an open relationship but failed to get this across...

Anyway I emailed her at the end of the evening and didn't get a reply so thought "fuck it then" but I just got an email now saying that she'd be down in my offices on Thursday and would like to meet for a coffee

Now where do I go from here? Providing she doesn't flake, how do I build attraction / chemistry and let her know I'm in an open relationship? All this over a coffee date...!

Don't mention it if she doesn't ask