Thats one example of bait by ratings ...
It is a prologue so anything could change.
The girls look great.
With that out of the way:
The conversations are weird. Everything feels extremely rushed and forced into the fastest believable sex content.
Wich is dream sex, so no sex content at all.
It is skippable, vut the next scene you will discuss it anyhow, so no point in skipping.
The LIs, if they are those, are unlikable. The daughter/stepsister tries so hard to be edgy it hurts. Like I mentioned, they look good, but not that good.
The mother/stepmother feels off, doesn't help that the father/stepfather is still in the picture, but there wasn't really any attraction other than the obvious fap moments. Nothing really outstanding or interesting.
Then of course drugs, stereotypical teen-behaviour, and no real payoff, because it is just a prolouge.
It is very early, so a proper rework could make this a great project. The visuals are there, the story is basic but serviceable.
Cut back on the edgyness, remove the drugs, start putting in actual sexy situations. Rework the whole interaction between the "siblings".
And if it is just a voyeur-fap game, be transparent, so that the right audience finds it.