I'm glad it worked out positively.
Being a virgin, and being trans, with no point of reference as to what you used to like sex-wise, it will take some time to figure it out. Also, needs and desires run on a continuum where they are constantly changing, for many people. The important thing is finding a partner that understands and is willing to take cues from you. If you are interested in taking it any further with your coworker, i'd get in the habit of checking in with her about how she feels and where she's at, rather than with a friend. i know it can seem overwhelming, but open and honest communication is the best way to go. it's best to get the information from her than from another person. good luck!