Numb3rs Fanfic Finders

Ok, I've checked the 'Don/Colby' tag here and didn't come across what I'm looking for so, I hope some of you can help.

I know it's not 'Two Men' series by spikedluv, nor is it swingandswirl's 'Cat Outta The Bag' series.  However, there is a line in it that says cat. outta. bag. or something similar.

All I can recall is that Don/Colby get together out of town I think and when they come back, they are supposed to be going to the Craftsman for dinner... and they end up having sex at Colby's place and then Don's place and get to dinner fairly late. ... And I think, everyone knows why and they are all fine with it.

Any help would be much appreciated :)

Thanks!