(The following is not for young audiences. This is a very mature Undertale fanfiction. If you are not interested in that sort of thing you should leave now. This is my first fanfiction so don't be critical if it's bad or I mispell something.)
Frisk had lived with Toriel in the underground for years. She didn't have any friends or a family back on the surface so there was no reason to leave.
Except, she wanted to explore the rest of the underground, no matter how much she would miss Toriel. She was eighteen now, today's the day.
After practically hours of trying to convince Toriel that she was ready to go out on her own, Toriel finally gave in and let her child be free.
After Frisk left the ruins, she encountered the creatures in Snowdin, Sans and Papyrus, learned how to leave the underground by speaking to Asgore, and went on her way.
After hours of venturing through the underground she was walking around in a patch of echo flowers, giggling at way they reapeted everything she said.
Then she came across a village. Temmie village. Thats what it read on the sign and she was curious about it.
It seemed there was no one around, just an empty shop, a statue, a painting, a crack in the wall and a mushroom.
Then, without warning, a creature came bounding toward her, pouncing on her. Apparently it was a temmie! But what freaked Frisk out was that the temmie was naked!
The temmie had a curvy body with D cup breasts and a huge butt. She said: "hoi! Im temmie! wow your so Cute!!"
And in a flash the temmie ripped off Frisk's clothes, exposing her hot body, similar to the temmies'.
Then more temmies surrounded her, all naked, all with sexy bodies, all giggling and gazing at Frisk.
Frisk was freaking out, 'What are they going to do to me?' she thought. Then they all came at her at once!
Four temmies were restraining her arms and legs while the rest would squeeze her breasts, suck on her nipples, and lick at her pussy.
Frisk was already panting, not knowing what to do, but feeling so much pleasure. She was already soaking wet from their licking and sucking.
One of them was pressing a vibrator on max against her pussy and she came immediately, shrieking in orgasmic bliss.
This went on for hours, the temmies milking her dry, sucking, licking at her nipples and pussy, vibrating them. Some of the temmies were rubbing themselves watching Frisk's torment.
Then they finally stopped, leaving her in a puddle of her own cum, panting, and they all went back into hiding.