(Charas pov)

It had been a whole year since frisk freed the underground and saved me at first I didn't want to go with them cuz of my hatred for humanity but then they showed me how the world had changed and the good side of humanity I still feel uncomfortable around humans except for frisk but I'm getting used to it. Frisk and I are siblings and for everything frisk has done for me I wanted to thank them that was kinda... odd actually very odd at least by human standards see me and asreil used to well... eat each other whole as a way of showing our love and affection sometimes it showed our trust in each other and how much we loved each other in fact many monsters did it and still do it humans can't cuz there not magic but asreil used his magic to make me able to do it so I want to try it with frisk.
Me and frisk were hanging out in our room and Toriel was gone so I decided now was the time to do it.
"Um frisk can we talk?" They turned away from there computer "frisk you have done so much for me for everyone and I want to repay you" frisk walked up to them and gave them a hug chara smiled and hugged back. "Chara you don't owe me anything just you being here is enough" chara blushed and broke away from the hug "frisk thank you but can I at least do something for you?" "If you want to chara' what is it?" Chara was blushing furiously "f-frisk you trust me r-right?" "Of course I do chara more than anything" "than please close your eyes" frisk curiously and nervously closed there eyes they weren't lying they did trust chara they knew she whould never hurt her.
Chara walked over and grabbed frisk shoulders opened her mouth and then...

CHOMP!
Frisk whole head was inside charas! Frisk opened there eyes shock and scared but refused to fight back still trusting chara chara than grabbed frisk arms and proceeded to shove them in further now up to there shoulders frisk was now in charas throat getting wet by charas saliva  Frisk wasted no time and lifted frisk off the ground now on to there stomach/back area frisk was near the entrance to charas stomach chara then shoved frisk in even more so she was up to frisks hips she considered giving frisks butt a grab butt decided not to cuz she still saw her as a sibling frisk head was now in charas stomach and felt how warm it was the rest chara passed frisks legs and onto her feet and gave them a lick before sending the rest of frisk to her belly. 
Chara was panting exhausted after that but immediately remembered about frisk who was curled up into a ball In her stomach
"F-frisk are you okay in there?"
U-um yeah im f-fine are you gonna let me out?" Frisk asked still shocked and scared
"Of course I just want you to be in there for awhile and have a pleasant experience while your in"
"O-oh! Ok um why did you do this though?
"Well me and asreil used to do this as away of showing our love and care for each other"
"Chara... thank you so much" frisk said touched realising just now how comfortable it was in her belly.
"Hey is it ok if I go to sleep it's really comfy in here"
"Of course!" 
Thank you chara goodnight... oh and chara thank again I love you so much your the best sibling ever..."
"I love you to frisk goodnight"

THE END
Well that took awhile I know many people are gonna hate me for this but u know what I don't care I wanted to do this so I did if you want more stories like this comment below.

So this is to my friends who might be reading this umm look guys I trust were good enough friends for you not to Judge me for this. I understand if you don't like it I'm not saying you need to vore is not for everyone just please keep an open mind that's all I ask thanks.