Well, that puts a different slant on it, if they are out and about on a regular basis. He has a job working outside with women partners, kinda like a cop. In that case, yes, i would be more inclined to buy the "sister" designation. Its not like everybody who works together gets together.

I agree with the other posters that it was rather inappropriate, Traveljunkie. Having a long talk with him seems the best solution. Hopefully you'll be able to reach an agreement about boundaries and how far you can both take the, If not, perhaps it is time to reconsider your relationship with him, especially if it's not the first time. Sending many safe, warm hugs to you, Traveljunkie, and to ALL the people you Love and who TRULY Love you!