C57 Who is she?

Swan couldn't help laughing.

Ava stood up and put her both hands on her waist and she both puffed her cheeks.

Swan looked at Ava and controlled his laughter, sit upright, and said "I am sorry, I won't laugh again. " and the next second he again burst out laughing.

Finally, after laughing enough for ten more minutes, he looked at Ava who had still her hand on her waist, and said " ok