Chara x Reader (no gender specifics)

It begins

Frisk- babe are you alright?!?!? You look like you've seen a ghost!!

(Y/N)- (shakily) y-yeah....

You immediately run into their arms trembling and on the verge of tears their arms go around you and they carry you to the living room gingerly setting you down on the couch. You pull them down with you not wanting them to leave you alone since you are still terrified. Frisk holds you in their arms making you feel safe. You nuzzle your head into their chest.

Frisk- hey....it's okay sweetie...I don't know what happened but I know it's gonna be okay...I'm right here with you.

(Y/N)- t....thank you frisk

You relax into them never wanting to leave the warmth of their arms. They make you so happy. You look lovingly up at them with your big (E/C) eyes. But...they are back...the red eyed one...with the green sweater. You try to jump away but you are trapped. Their hold on you is too strong for you to escape.

???- what's the matter my love? Is everything alright? Here let me help you relax.

You tense up at the thought of anyone else besides Frisk relaxing you. They begin to massage your shoulders and back gently nibbling on the top of your ear. You let out a small gasp. A hand finds its way up to your chin slowly tilting your face towards them. They begin to close the distance between your lips. You close your eyes and await the kiss that never comes. After a few seconds you open your eyes and see Frisk staring at you with a bit of blush in their cheeks.

Frisk- ummm....(Y/N)....

(Y/N)- (in a quiet almost seductive voice) yes my darling? 

Frisk- Are you in the mood? Becuase....your hands seem to be...

Your face goes read as you realize that both of your hands are currently up Frisk's shirt touching their body you gasp and remove them turning even more red.

(Y/N)- oh....oh my god...Frisk I'm so so soooo sorry...I didn't mean for...

Frisk silences you with a loving kiss. You relax into it and them as they pull you closer. They pull back slightly 

???- Is that what you were waiting for love? 

Your eyes pop open and you realize you didn't kiss Frisk...but the mysterious person. You jump away realizing what you just did.

???- Oh come now darling...I know you wanted it...

Their voice was seductive and terrifying, but...it relaxes you immediately...you no longer feel tense or scared. All you feel is love...love for this new mysterious person. 

(Y/N)- (quietly) ummm...w...who are you...

???- if you really want to know...climb the mountain and find me my sweet.

They walked closer to you as they said this in a very seductive manner. It didn't bother you anymore though. They came close enough to you and wrapped you in a loving embrace. You relaxed into them

(Y/N)- okay...

Then suddenly Frisk was back but they unfortunately were on the couch still and since you had been leaning on the person you fell on your face.

(Y/N)- owwww....

You roll over as Frisk runs to you and picks you up and carries you back to your room. They lay you in bed and cover you up. They run downstairs and you hear them start making something. You however are still thinking about this new person. You feel a shift in the bed beside you thinking Frisk is back but you just didn't notice since you were too deep in thought. To your surprise and...and delight?? It was the mysterious person. They smiled evilly at you. You couldn't help but smile back at them. They pulled you in and cuddled you.