When Frisk follows a genocide route, Sans does everything he can to bring her down. But with a power like "reset", even he eventually falls to her mercy. However, instead of killing him, she offers him a chilling deal that will change his life forever.

Based off of the UnderLust Sans in my fanfiction "Twisted Love", this book gives the readers a chance to ask any question they wish to UnderLust Sans. Readers will get a chance to see both my artwork and understand the character better.

Get ready for some sins you dirty sinners!

This Is A Possible Lemon :P Well Duh

I DIDNT SEE ALOT OF THESES SOO I DECIDED TO MAKE ONE LOL.

Your older sister wanted to vistit her boyfriend Papyrus, personally you just wanted to wait outside... Then you see Sans... want to hang out?

Hello dears~ UnderLust Sans here and I'm here to Do your dares I'll do any dare or answer any question you say or ask

Here ya go filthy Lust sinners