Arya did not stop being naughty inside the car. It was a good thing that their service was a limousine and there's a closed partition between the passenger and the driver's seat.
"Hmm I don't want to wait for so long. Look there's traffic so we'll have to wait for more than one hour to reach our suite. Let's play for a while in here and have some fun love… Okay?" She said teasingly as she hiccupped. Obviously she was not herself already.
She laughed hard then pinched Ryu's cheeks and said, "Wow, my baby Ryu, my love is so cute today!"
Then she leaned on his ear and whispered, "Because you were very sweet and so attentive to me today, you deserve to be rewarded. I will give you an out of the world reward today. Something exciting and I'm sure you'll like it too…"
Then she nibbled his ear.
Ryu did not know how to react, whether to laugh at Arya's brazenness and boldness or to stop her. However, he was already getting affected by Arya's teasing and caressing hands..