I love her reactions, a full mix in just a few panels.
The better part of slime or goo induced expansions is that the person being expanded tries to get the stuff out but can't because it's not grippable like a solid or expendable like air/liquid, it's sticky and in some cases sentient. In the case of a sentient goo, t's even better because it'll move around on it's own, adding much more to the persons reaction (much in the same way a pregnancy expansion would feel, only not solid).
...I should do one of these some time. ^_^