When an issue drops Jessee indicates if they're NSFW, which means visible nudity. If it doesn't say NSFW, there won't be anything visible.
"Volume 68 is Here – NOW AVAILABLE
We're excited to introduce Koko Angel, making her stunning debut, captured by our regular, Oscar Bueno, in the breathtaking scenery of Mallorca, Spain.
Plus, we're thrilled to welcome back fan favorite Abby O'Neil for another stunning story, shot in Los Angeles, California. (NSFW)"
The "NSFW" was for Abby, not both. It seems that you just didn't see that it wasn't labeled NSFW for Koko's shoot, but if you're new to the site I could see how you could have thought the NSFW tag applied to both.