The scene features at least 1 girl being either partially or fully nude in a public setting where one would typically be required to be clothed. (e.g. a library, a parking lot, a beach, a street corner, etc.) If the scene is also sexual in any way, this will be used in combination with the Exhibitionism tag.
Series Page Video Link (Rule34 Video) Length: Long Stays Yuri: Male Joins + Male Watches Rating: 4
During Megumu’s route, the MC has a hypnotized Megumu seduce and have lesbian sex with Sakura.
After the scene is over, the MC reveals himself and immediately has sex with Sakura. (I cut off the video once the MC joins because nothing yuri happens during it.)
Series Page Video Link (Rule34 Video) Length: Long Stays Yuri: No Male (Male Watches?) Rating: 4
When the MC goes to the nurses office, he hears some moaning and chooses to stay quiet and listens in on what’s going on.
We then see Megumu’s perspective as she’s seduced by Sakura into lesbian sex.
There’s an option either to stop it early, or to continue to stay quiet and listen in (This choice has no effect on the story other than the length of the scene.) In the video, I choose the stay quiet and let them continue option, but eventually the MC does accidentally make a sound, which ends the scene.