HRDV-592 - I think I'm a pervert... Yuna Wakui's erotic transformation for her brother

I usually prefer them to be completely naked, but I think the half-dressed look in the first scene actually works really well here. That said, the second scene where they're fully nude is definitely much better. It's a huge shame that you can't fast-forward this, so I couldn't finish watching it. If it had a fast-forward feature, I'd probably give it 5 stars...