sounds like natural fluids. We tend to "hold" them in longer and they slowly escape with gravity. Watch for foul smells or green/yellow discharge. Those mean trouble.
It could be that she's ovulating. Women can have this sticky discharge during this time. So, it's good that you were using a condom if this is what's going on. If it continues then she needs to see her gynecologist.
Hi Rikky, dont worry its just some female ejectulate, yes some women can do it.
Good Luck