I just think somebody needs to force Jon to age regress. An artifact. Manipulation. Idk just take ruthless advantage of how obviously he needs to be small even though he’d never willingly do it (especially in front of another person).
And then that somebody should take advantage of him and ruthlessly breed him over every available surface. Then tuck him into bed. Letting him come to hours later, cum dripping from his used hole, mortified by what happened to him and hating how much a part of him enjoyed it.