Nun solo
No matter how sincere the spiritual impulses may be, the body still remains sinful, even if we are talking about the most right nun. Vagina, that no one has penetrated for a long time (or even never), itches unbearably, and when other nuns are not looking, you can and should relieve sexual tension by playing with yourself with a naughty little hand. Not a single soul should know about such moments, and yet sometimes they end up on video.