Yep, Saturn has plenty of yellow & red label games. Most yellow are pretty tame and then you have the red.

Most the red have animated nudity and others have the real deal. The yellow labels are semi nude or in bikinis, you get the picture. I'll list what I have... yes I'll admit to it.

Super Real Mahjong 5, 6, 7 and Graffitti
Cebu Island 96
Can Can Bunny
Body Special 264
Girls In Motion Vol. 1
Mahou No Janshi PoePoePoemy
Ohsama Game
Playboy karaoke Vol. 2
R?MJ The Mystery Hospital
Sexy Parodius
Shutsudo! Minisuka police
The Yakyuken Special
Virtuacall S
Virtua Photo Studio
Gals Panic SS

I'm sure I missed some, but that's most of them off the top of my head.