Slip a finger in.

You bring a finger up to the fold of her pussy and slip it in while still tongue fucking her. Seulgi suddenly releases your head between her legs and stops moaning. You slowly pull your face from her sweet pussy as she glares down at you. "What the fuck!". Seulgi screams. "I said tongue fuck me not to use your filthy fingers! Is see opponent number 2 can't follow instructions! Opponent number 1 you win this round. Now both of you out of my sight this instant!".

You should have known that this competition wouldn't be so easy. Clearly you need to be paying more attention. You sheepishly get up and begin walking out of the garden with opponent number 1 following you laughing his head off.