[ Jack is in heaven. The whole time Hiccup's curious mouth is painting him in spit and suction, Jack's own hangs open and lets the apartment next door know exactly what's happening, loud and uncaring as he moves against that hot mouth with his brain switched off. ]

You're a fucking natural at sucking cock, oh God, y-yeah, get my balls too, rub your lips over them. Mmngh. Shit, you hot little bitch ...

[ Panting harshly by the time Hiccup travels north and takes in a few inches, Jack widens his stance and rocks gently, encouraging him with petting hands all through thick red hair and clutching at shoulders. Hard and leaking clear, tacky precome, he rubs his slit over Hiccup's lips to get them shining. ]

Close your eyes, pretend we're in your office. [ Jack's stomach tenses, dick jumping with want before he offers it back and lets the fantasy spiral. ] Yeah. I'm in your chair and you're blowing me under the table, people are passing by the door ... fffuck, let's do that, Hic, suck me off at school.

[ His tone lowers to a purr as Jack cradles the back of Hiccup's head and finds a rhythm with his naked hips, push and pull. ]

Suck me off, sir.