Sans went to gaster's lab,he wanted to talk with him

Sans:"called me dad?"

Gaster:"yes my son,sit down"

Gaster:"sans,i have  good news and bad news"

Sans:"what news?"

Gaster:"the good news is,i found a way to bring back your mother"

Sans:"r-really?!"

Gaster:"yes,but,we have bad news"

Sans:"what?"

Gaster:"we need her DNA,but there are few universes where she is still alive"

Sans:"we would have to go looking in all universes"

Gaster:"i dont know when we would come back,so,its time to choose sans,will you stay or will you come with me?"

Sans:"....lets do this"