I love the idea of a scene with 2 sections - I first recall this from Christoph Clark's Angel Perverse series from 10+ years ago (although of course others may have done it earlier). It's incredibly horny to see a girl take really hard group sex only to then get it again and potentially even harder the 2nd time around.
However, not wishing to come across as ultra liberal, I don't really get why the guys have to be grouped according to their skin colour. I get that the black Giorgio guys generally have slightly bigger dicks so there's an element of the scene building in intensity and strength by having them as the 2nd group. Still though I'd much rather see the 2 groups of guys being mixed. That just makes for a bit more variety and it would be interesting for the guys I would think to find themselves fucking alongside different guys every now and then.
I'm not sure if there are practical reasons around it. Is DAP a factor? Do the guys need to have DAP partners or something? (ie is it hard to do DAP with a guy you're not used to doing it with?) Is it just that those groups tend to perform together so it makes more practical sense?
Come on LP - end the segregation! Let's break down barriers here. Make it 2 random groups of guys regardless of skin colour and change the series name to "Double-ended".