I think this is talking about the neglect play in foreplay mode.
Though, I think masturbation during night has anything to do with it because I encountered those CGs even though I didn't use the computer.
I thought about that too, since I also got the scene and I almost never used the PC for it... If that was the case, why put it under the features of "All-in-one" computer? It should say "unlocks neglect play" scene instead because its misleading into thinking you can use vibrator while masturbating when chosen in PC... I checked the image files, and don't see any kind of icon in the PC images, so I wonder...
Also it says playing with cat, reduces stress of 30 points, when it should say it reduces all points instead. Or replace cat for the best type of bed, which reduces 30 points of stress for real.