Frankly, her sister is pretty cute. She probably takes more after her dad, because Chantal looks a lot like her mom. If she ever loses the weight, that's what she'll look like, not her photoshopped fantasies.
Chantal is 12 years older than her sister, btw. So, when she was bullying and mistreating her baby sister when she was a child, it wasn't like a bossy 7-year-old giving her younger sibling grief, as many kids do.
It was a 17-year-old tormenting a 5-year-old, which is inexcusable.
Whatever special needs the sister has (she seems quiet but normal in the video below), they probably were the result of her monster of a sister ruining her young life...
Anyway, here is a very awkward family dinner. Chantal is making them eat frozen (pepperoni and bacon!) pizza for a "family mukbang", and it goes down like poison with her siblings. Nobody wants to talk; Chantal keeps asking them to tell stories, but nobody has anything to say. Only Chantal, who eats like a slob and spills food on herself (her siblings eat pizza with a knife and fork), seems to be enjoying herself... He family seems nice enough; only Chantal is the elephant in the room.