I posted the same question a few months ago and despite the coli telling me not to do it, I went ahead and did it anyway. Of course the shyt ended in disaster because she caught feelings (not to mention she is engaged and has a kid). I was just able to cut her loose last week and even then, she still wants to meet up and maintain some type of relationship. It's to the point that I've been thinking about trying to frame her at work so she gets fired and I won't have to bother seeing her again.
Work will become awkward if you are like me and get tired of new p*ssy real quick. Plus, she can always run to HR and get you fired if you ever make her mad. In my case, her fiance (who supposedly knows that she's fukking somebody) could come up to the job anytime and try to get me fired. There are way too many fish in the sea for you to shyt where you work. Just take my word for it and do not fukk her. Once you get the p*ssy the first time, shyt will go downhill from there.