Pxhawk FC with 12 motors

i have a pixhawk flight controller on a tarot 680 hexacopter. i want to do a dual motor setup. just messing around and want to see if i can get it right. can you connect both esc to the same motor out.
just so every one understands i want to put 12 motors on a hexacopter

Yes, you could also use a buffer IC to separate them to improve redundancy in case total failure of one each, or short of one PWM cable