it's just kind of a thing
"Look at you. All spread out and ready for me, yeah? Knew you were a bit of a cockslut. Could hear it almost every night when you'd beg him to fuck you. To give it to you hard and raw, 'member that, H? Even fucked on the couch once when I was in the kitchen making tea." He hissed, hips rubbing forwards against his arse to drag his own cock up against his entrance.
(or the one where Harry's sex tape gets released and everyone thinks that it's Louis. Louis may or may not become obsessed with said video.)