you know, I am not fan of incest because incest is provoked by genetically attraction and lust and ends up with genetic deterioration primordially, and mostly they end up with rape and sexually abuse.
But like Aki-Sora, this one and a few others are exceptions. I do not mind it if it shows real/true love.
Swing out sisters is one of the few hentai that shows incest out of true love rather than lust only. At least from the older sister to younger brother... younger sister got in together out of jealousy and also wanting his attention.
This is the difference between incest:
Usually when is from a male
to female, it involves lust and sexual abuse/rape.
But usually when it comes from female to male, its real love.
it is a shame how the girl still get used... unless the guy is not a douche bag and actually really cares and treat her with respect.
There is another thing, I tip my hat to the voice actress of this flick.
She played both sisters; but the thing is that i did not notice... she did her role so well that she did not sound as if it was the same person, she sounded like two different people voicing two different characters but in the end it was the same actress!
Which blew my mind! She deserves an oscar! Seriously! That is some talent!
Even on the intercourse scenes she did not sound the same.
I have to re-hear each character one-time again to be able to realize that indeed was the same actress!
Regardless, the film was enjoyable and not obnoxious and shows real love.