Then thoroughly wash your hands. Once you have washed them, there is no worry whatsoever about accidental transferal to others, as there is none left on the surface to transfer. Studies have shown this, and also that merely putting on a T-shirt to cover the exposed areas will do the same for the rest of you. If you had to, you could shower in an hour or so, without appreciable loss of testosterone delivery, as the gel soaks into the skin, and the skin acts as the actual reservoir for dispensation of the drug. You wouldnt want to do this all the time, but swimming or showering in a pinch can be done. It's still a good idea to take a quick shower before engaging in intimacy.