Underswap - Return of the Fox

A nice chat

I turn to look at Toriel and she says "Why don't you follow me to my castle and we can have a chat.". I sigh and say "Okay but after we talk, I'm leaving." and she nods. We walk though the underground to Toriel's castle then I decide to say "You must be wondering why I've returned.". "Yes I am now tell me why you've returned." She said. "You wouldn't believe me if I told you but I'll tell you anyways." I said. She stops and looks at me and I lean into her ear and tell her why I returned and she blushes.
"Do you believe me?" I asked. She nodded and continued walking without saying a word. I follow her and soon we reach her castle and she leads me to her room and I start to wonder what she really brought me there for.