Yes

You use a knife to cut Oberyn free of his bonds. He lays on the table, catching his breath and rubbing his sore wrists. Now that he has turned around, you notice a noticeable bulge in the Prince’s smallclothes.

“For a moment there, Your Grace…” he pants. “No matter, we are on our way to safety now. Before long Lord Tywin will be dead, and we will be safe on your kingdom island. You have my thanks, King Rishard, and the gratitude of all Dorne.”