Decide the ending please.

I'm making a future video and I have no clue how to end it. I have some ideas for the ending, but can't pick one of them. Mabe you guys can help.

Here's the context:
Some guys and me are taking turns fucking Hatsune Miku. One round each. There's a final scene with one guy. This scene is more intense than the others.

Here are the endings I've come up with.
Normal ending: The last guy before the final scene gets a "horny boost" and fucks the hell out of Miku.
Self insert ending: I get a random "horny boost" and fuck the hell out of Miku.
NTR ending: Some random guy from outside the group comes in and fucks the hell out of Miku.
Twist ending: Turns out the guy at the end is the viewer who has been watching the video so far and somehow got inside it.

Please help me pick one of these.
https://strawpoll.com/vb32dfhpr

If you have any other ideas for the ending let me know them. I honestly kinda stuck here.