Gladio's eyes slide over to watch the others, as Ignis lowers his mouth onto Noctis' cock to enjoy their king, even as he kissed Prompto. His own tongue licks down the length of the blonde's spine, kneeling behind the other.

"I would have liked it too, but I guess His Majesty is shy."

He agrees with Prompto, teasing tone even as his hands slide down to settle over his hips, large and warm palms holding the other in place as his teeth nips at skin, right at the small of his back.