Beside the Still Waters (Locked to the_rebel_son)

The river is wide and placid, water a deep greenish-brown from a distance, clearer the closer you get, with patches of whitewater toward the center. The rocks Balthazar has set them on are a small island, more than enough space to house dozens of sunbathers, and surrounded by water weeds on all sides. There are chalk drawings on one of the boulders. Looks like a crude mermaid, a few birds, and several games of tic-tac-toe.

Balthazar looks around to make sure they're alone, and then takes Lucifer's hand and holds it against his chest, looking up into his face. "This should be safer."

His wings are still flared, in that quantum state that hides them from human eyes, but visible to Lucifer once more. If anything, they look slightly fluffier. That's either a response to the energy or some kind of semi-physical reaction to arousal. He's blushing a little, too.