I think that so long as you can possibly put an innocent interpretation on it (they may just happen to be in a robe, and aren't so body bashful that they would object to being seen wrapped in a towel)...you have to assume that's all it is.

You might be right that they're coming on to you some portion of the time...but it just has to take one misinterpretation to get you well and truly fired and possibly arrested. Not worth it.

Besides, CGT is right....if they wanted you to take them, they'd drop the towel and tell you so.

BTW, if THAT happens, we want a full report!