One of Jon’s rape fantasies, especially common in pre-S1 and early S1:

A late night conversation with Elias, who is plying Jon with alcohol. Getting him juuuust drunk enough that he goes along with it easily, so easily, when Elias kisses him. Pins him down. Begins to undress him. Jon unsure and telling him to wait, to slow down, Elias making him take another sip of his drink and then beginning to stretch Jon’s hole, prepare him to take Elias’ cock. Jon drunkenly insisting he wears a condom (“I’m- ah- not on the pill”) and Elias rolling his eyes but complying.

Elias pushing inside and fucking Jon, gentle and slow. Telling him how wonderful it feels to be buried inside of him, how much he’d enjoying Jon’s helpless body. Jon giving in because he can’t fight back and it feels so good… before realizing with horror that Elias had slipped the condom off at some point. He tries to push Elias off, pleads with his dad to stop, to pull out, but it’s too late and Elias is emptying his seed into Jon’s womb, and that’s all it takes for Jon to cum too. Elias holding him close after, telling him that he knew Jon would like it, that he’ll look so pretty all round and stuffed with his father’s baby.