i bet you have never tried it before 
with 4X tits bouncing, 2X pussy, 4x
hands feeling every parts of your body, 2X tongue licking every
where i'm sure you can keep firing away.... just make sure both
gals know and feel confortable with each other, that way they will
perform much much better. on the other hand, if you're to choose
the 2 gals yourself, if you're lucky then ok if not they (the 2
gals) might even go to the extend of asking you to change condom
after entering the other gals pussy..... after changing a couple of
times your kukujiao sure to fall asleep... 
