Cum.

As soon as her movement caught you, you were immediately submerged in a puddle of cum pooled in the crotch. It took a lot of effort to pull yourself out of it, but you do manage it. You look around and see that her panties are drenched in it. Hell it was leaking down her thighs too.

You blow your nose to clear it out of your nostrils, and immediately regret that you did. The smell of it is overwhelming! How long has it been in there? Where did it come from? Whose is it?

You fall back into the gooey prison as she starts pulling her panties back on. You look up to watch her approaching crotch and see exactly where it is coming from: