Transistor Two Way Switch
I'm somewhat guessing at your exact intent here, so correct me if I'm wrong, but are you envisioning one of these circuits:



Here high/low signals on the on/off pin will make/break the circuit to one load terminal, while high/low signals on the fwd/rev pin will reverse the polarity (Vcc/GND) connections to the load terminals.

-----OR-----



Here is a "standard" H bridge where High fwd &amp; Low rev = forward motor; High rev &amp; Low fwd = reverse motor; Low fwd &amp; Low rev = no motor power; High fwd &amp; High rev = short circuit from Vcc to GND (and will likely destroy your transistors).