You and Sans were at Waterfalls on a hill talking.

“So Kiddo..I know…we known each other for awhile..and I am a monster and you are a human..but t-that changes nothing between us..”

Sans said stepping closer to you as you backed away from him nervously but he kept stepping closer.

“And I..I..I want...I want you..Kid and I know it’s alot, b-but..I..I also get I’m a lazy bones and not much to..work with ..but I have a lot of love to give..”

He stepped closer and as you backed away nervously unsure of what to think..

“Kid, I lov-.” But before Sans could finish the hill began to break apart as you and Sans fell down into the water and slowly everything went black..

You finally woke up..and saw you were in a room or lab?..

And then you see who save you….Gaster.. while Sans was in a bed next to you still passed out.