Tim has a revenge fantasy about Jon. In it, he’s getting back for all the stalking and photographing Jon did to him. Following him to his flat and breaking in while Jon’s distracted or asleep, tying up and gagging him. Stripping him nude and taking his own pictures, with Jon in whatever helpless or humiliating positions Tim wants. And fucking him too, of course.

Tim enacts his fantasy. Either without Jon’s consent or as a consensual noncon type scene.

Bonuses
+Jon crying
++Jon being a masochist, especially if Tim realizes halfway in
+++if it’s noncon, Tim and Jon have “parched things up” mostly and this comes completely out of left field for Jon
++++Tim threatening to blackmail Jon with the photos