proper installation of double GFI receptacles in one box

I am doing a complete bathroom renovation. I wish to install two GFI receptacles in a double box. The incomming wire is always hot and goes no further than the box in question. As there is already one existing GFI recptacle in place i can see how its wired. can i just pigtale its white and the new ones white to the incomming white and pigtale the current black and the new black to the incomming black and common the grounds
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Why not install a regular (non GFI) duplex receptacle downstream of the existing GFI?
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Yes or you can do as Peter suggested to save a little on the cost of an additional GFI. Put your pigtail wires from the second receptacle into the LOAD terminals on the first GFI. That will make the second receptacle GFI protected. The current code calls for a separate 20 amp circuit for the bathroom.
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This is excellent advice but you will need to use the decora style duplex so that you can find a 2 gang cover to fit.
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Colbyt
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They actually make two gang Decora/Duplex plates, although a two gang Decora/Decora plate would look more attractive
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