Changing For You (Chara X Frisk)
Frisk lives in the new world with her family Sans, Papyrus, Toriel, Asriel, and Flowey. Frisk had been dealing with bullying at school and one day, looking back at what flowery said, tried to hurt another student. She felt regret and sorrow for what she had done and swore to never listen to flowey again. What frisk didn't know was, the feelings that she was feeling at school towards the bullies, awoke Chara. Chara wanted to kill the ones frisk loved, and them, but wanted to get close to her first to gain her trust. But being with frisk started to change her perspective on things and starts to rethink her decision.
(Yes in this story Asriel is alive and flowery also lives with them. Sans and toriel aren't in a relationship in this story. Chara and frisk are both females In this story, sorry if you don't like that, but that's what I've chosen. There might be nsfw, heart play/ or normal smut.