Have her suck it out gently

"Aiko, listen up." You say as you feel yourself nearing orgasm. Aiko looks up at you with those naive brown eyes.

"I´m going to cum soon. As a gook girl you have to swallow it. Since this is your first time I´ll make it easy for you." You slide out of her mouth until just the head is left and put both of her hands on your shaft. "Now pump the shaft and keep running your tongue over the head. When I cum, you just swallow. Got it?"

"Mmph pmmgfgh." Is her short reply. She then obediently starts jerking your shaft with both of her small hands.
"Ah, here it comes. Get ready you fucking Gook!" With that you cum. Aiko seems to dislike the taste and tries to pull away but you put your hands on the back of her head and keep her head still. She remembers her job and starts swallowing. Its a pretty big load so she has to swallow fast, but she manages.

After you´ve finished cumming, she keep sucking the head just a bit more, almost as if she wants to make sure there´s nothing left...