After spending some nights with Sunset and giving her huge belly all the worship she could, Twilight started feeling envy for the reformed Dazzlings who were enjoying their new lives as Sunset’s “bellypets”.

She decided to ask her if she could let her in, but not without first coming up with good excuse: She’d be taking notes about the whole experience, then publish it as her science project. ‘My Life as a Bellypet’ would be its title.

Sunset didn’t really buy it, but she was still excited her friend wanted to become her bellypet so bad, so she agreed. They went to the bedroom and sat on the bed, not before Sunset placed a cam on the dresser in front of it. If they were really gonna do it, Sunset would make sure it would be all recorded. For the project, not as fap material, she swore.

Sunset instructed to place her feet inside the dent in her huge outie bellybutton, and when they were inside, Sunset’s navel started doing its magic, sucking Twilight’s legs at a pretty fast pace, whose complete cooperation made it smoother and easier. Twilight also felt someone grabbing her ankles from inside Sunset’s navel and pulling her in, so in no time only her head was left peeking out from Sunset’s engorged navel. This was the turning point - if she wanted to quit, this was her last chance - one final pull and she’d be completely gone inside her soon-to-be momma. Sunset knew this so she asked one last time:

‘Are you still sure you wanna do it?’