Rae has never seen a hot water bottle up close, much less tried to blow one up with her mouth. But Mia assures her it is possible, and proceeds to try it alongside her. They begin by trying to stretch them by mouth, but only succeed at stretching their cheeks, which at least provides a good warm-up for what is to come. Once they attach their check valves and hoses, it becomes clear that poor Rae has drawn a much more difficult vessel than Mia. So they switch, which enables Rae to finish what was originally Mia's hot water bottle fairly quickly. So Rae does what any good lab partner would do...

Rae has never seen a hot water bottle up close, much less tried to blow one up with her mouth. But Mia assures her it is possible, and proceeds to try it alongside her. They begin by trying to stretch them by mouth, but only succeed at stretching their cheeks, which at least provides a good warm-up for what is to come. Once they attach their check valves and hoses, it becomes clear that poor Rae has drawn a much more difficult vessel than Mia. So they switch, which enables Rae to finish what was originally Mia's hot water bottle fairly quickly. So Rae does what any good lab partner would do - she provides moral support by "puffing" along with Mia until she finally finishes hers. Great teamwork!