A stumble and a fall

"Wasn't there a tree here a minute ago?"

You trip over a root and fall into the crater, blacking out.

When you come to, you are lying face-down in a puddle of strange slime.

"Yuck!"

You get up on your hands and knees in the middle of the puddle and spit some of the slime out of your mouth. Your clothes are soaked straight through, and your boobs feel swollen, almost gravid.

Something slithers into your tight, 18-year-old pussy. You try to reach for it but your arm won't move. More and more slithers into you. You can feel it filling you, probing your cervix, pushing and pushing. It's a strange sensation.

You are geeky girl who's more into academics than boys. You've never felt anything like it, but something tells you this is stranger than what it's like with a guy.

Your cervix dilates and you feel ovoid things begin to make their way up your squishy pant leg, into your pussy, stretching it, and passing into your uterus. As each ovoid, as each egg-like thing makes it into your womb, your pussy closes and tightens, as tight as it ever was. A soft sense of pleasure washes over you.

A disembodied voice speaks.

"I LIKE YOUR WOMB. BRING ME TO MORE LIKE IT."

"No!" you scream quietly. "I won't let you. This is wrong. This is ****."

"THIS IS MY WAY. GO NOW. I NEED HUMAN WOMBS."

You resists with all your will, but it's no use. You get up, walk out of the crater, and bike home.