Thanks to a friend, we got an extra large size vacuum bag. The vacuum bag looks like a shrinkwrap food in the supermarket.
When we start vacuuming, at first Miao use her hand to block out some spacer. On the second time, she started to put down her hand and let the bag sticking to her face.

After a couple of times, she changes to a gas mask and enters the bag again. As there is most space for air, I am able to enjoy her body for longer.

At last, she decided to put on a latex vacuum hood and have her hand bond. As the vacuum close down on her, her scream become louder and louder.

If you are interested to hear Miao's scream, you wouldn't want to miss this.