Now obviously Jon doesn’t have living parents, but luckily there are several aus which solve this problem for us:

• Jon masturbating/having sex with someone else in his father (Elias’) bed, watching himself getting fucked in the mirror, unable to think about anything but how his father must be using the eyes of his reflection to watch his son have sex.
• Elias taking Jon to meet his “parents,” and then taking Jon in their bed while they’re downstairs, watching himself breed Jon in the mirror. Works better if it’s og!Elias (who would Actually be related to/view them as his parents).
• JonJonah au/time travel, where Jonah rails Jon with his strap in his parent’s room, watching himself fuck Jon in the mirror, enraptured.
• Jongerry incest where they fuck on Mary’s bed, Gerry watching Jon’s strap sink deep inside of her in the mirror.
• Same as the first but it’s Peter fucking Jon over Elias’ desk and it isn’t the same as Elias’ bed (and he isn’t Jon’s dad anyway) but it feels like it and he Knows Elias must be watching through the eyes of his reflection in the mirror and and and-