What if Bill Cipher met Alastor?

Chapter 18: final song (the end)

Bill turns around to look at Alastor, seriously.

He says silently: "So have you decided yet to fight your ways or to do what you've always done?"

As a final try at proclaiming his feelings, Alastor recopriates Bill's serious look and swiftly started singing:
"Before I met you
I only knew of one way
One way I could imagine living
But you showed me the linings
Of another way
A different way
I must admit that way doesn't look bad
But it's difficult to change so much
If you've been the polar opposite all the time
Of what you could be potentially."

Bill joins his song:
"I understand your struggles
As I've tried to tell you
I feel the exact same way
And truth be told
I don't like the idea of
Changing too much
I don't wish to grow too soft
But I'm aware I have to change
Change my ways to make this work."

Bill floats closer to Alastor and lays his arms comfortingly on Alastor's shoulders, both looking at each other, intimately.

Bill continues:
"You're worth all of this mess
You're worth this massive change
You're worth it all
So I'm willing to try changing my ways
To make this work
But what about you
Are you willing to put up with this too?"

Alastor looks at him fondly, starting to sing again:
"I'm mentally torn between ending you
Or getting ended by you
And giving you all the love that I have
I'm not certain whether I change
As quick as you can
But I will try
I promise you my dear, I will try."

Once hearing that, Bill excidedly turns into his humanoid form again in a heartbeat, pulling in Alastor for a passionate, gentle kiss.

Then they just keep kissing for several minutes. Each minute the kisses becoming more heated than the minute before.
Bill's hands explored all of Alastor's upper body in wild excitement, yet still craving much more than this.

Alastor didn't like the feeling that was building up in his groin so he slowly broke off the kissing for now. Yet Alastor kept feeling his lingering desire for Bill, very much to Alastor's annoyance. He didn't like this feeling of intense tension to be released.

Bill was slightly disappointed yet respected Alastor's boundaries.

Bill continues singing, while bowing in front of Alastor:
"I promise to always respect you
You as well as your boundaries
If I ever happen to cross them
Feel free to end me
Or at least to try ending me, hahaha
I promise to protect and love you
And all the other things
All the things mortals promise each other
When they are in love."

Alastor bows slowly:
"I promise to keep you entertained, dear
Nobody could give you better
Better classy entertainment than me
I promise to change my ways
But also to not change too much
I also promise to love you
And all the other silly things."

Then they stood up again, holding each other's hands, singing in unison:
"Let's begin a new life together
New ways, new way of life
But also keep some old habits
Let's take over Gravity Falls
This time it will work
We will have a nice palace here
A place where we are the ones
In control
We are the ones in charge
We will be the kings of Gravity Falls
We'll turn most of the population
To stone to build our
Our cruel mighty inhumane throne!
But this time, we will build two of them
And the people we don't turn into stone
We use as entertainment
And who knows
Perhaps we will manage someday
To shut down the weirdness shield
And to expand further than
Further than Gravity Falls
Maybe just a whole country
Perhaps an entire continent
Under our reigns
Possibly the entire globe
Potentially the whole wide universe
Who is to stop us?
We are free and mad and in love
Who can stop us?
Reign will be so much more fun
With a partner in crime
So darling I can't wait for
Our future of reign and change
Freedom and madness
Love and cruelty."

Alastor grins at his boyfriend wickedly: "Now, let's take over Gravity Falls! It isn't gonna takeover itself, haha. We're gonna be very busy, my love."

A/N: This book ends here now. But I've just published a new fanfic. It isn't a sequel and it isn't connected to this fanfic in any way. But it's a Hazbin Hotel x reader fanfic. So feel free to check it out. Thank you for reading! I appreciate your reads, votes & comments very much & I hope you've enjoyed this book :)