A few thoughts... First, if you are worried about God seeing you naked, just get dressed and do the funky monkey with your significant other underneath the covers (a big, thick comforter works best); God wouldn't violate our privacy by looking underneath the covers. Second, necrothreadophile, yes, that word will work quite nicely!
Oh, come now! God has been watching marital relations for thousands of years. He created us this way.
As for Him not looking underneath the covers,
"O Heavenly King, the Paraclete, the Spirit of Truth who are in all places and fill all things