Anna was confident that she'll be able to defeat the stink of Nina's boots, so she decided to smell them hard and quick, and get it over as soon as possible.

And with a moment, it all changed.

Anna gave a mind-blowing sniff, and...

"MMMMPPPPPHHH!"

The trapped sister was struggling hard, the stink of it all invading her nostrils like nothing she has ever felt. All the pain she ever suffered is nothing compared to how powerful the smell of Nina's footwear is. As she continued to sniff, tears began to develop in her eyes, hoping that the five minutes will be over.

After a long five minutes of stench, Nina let her go. Anna was coughing and weakend from all of the torture, and was on her knees.