The truth of the matter is that in reality, the ends are twisted in OPPOSITE directions. Twisting in opposite directions is the ONLY way one can 'twist" anything. To see for themselves, all one has to do is to twist a piece of string between the thumb and fore finger of each hand: a common practice among fly tiers who make 'furled' extended bodies.

On the other hand, the practical answer lies in whether or not you layout and twist in a "V" configuration. If so, then Jack's answer is correct when looking at the ends where the twist is being applied. If you think about it, simply envision the 'doubled' ("V") configuration as being straightened out in a straight line and being twisted. No rocket science here.