im curious what the pop sound came from? Also that "uh oh, I fucked up." expression.

It's eating her, and then it's going to eat me oh me gaaaaa

Selvokaz said:

im curious what the pop sound came from?

Getting past the knuckles can be a sudden experience.

she also looks like she's peed herself.

cd_young said:

she also looks like she's peed herself.

That was already there from the second image; whether it's lube or the commonly-flying-in-hentai fluids is up to the viewer, I suppose. Regardless, she gets there in the next image anyway.