Luca's body was trembling.
Not from fear.
Not from uncertainty.
But from heat.
From need.
His fingers were still tangled in Xavier's hair, the other curled against his shoulder. But now, now his eyes had drifted down lower to where the undeniable shape of his husband's arousal pressed against him, hard and unrelenting.
His breath hitched.
And his cheeks went scarlet.
He didn't look away.
Not immediately.
His golden eyes widened just a little, lips parting as if his breath had forgotten how to come naturally. And then he looked up again, to Xavier, as if seeking confirmation for something his body already knew.
Because this time, after the prince had taught him about it, he knew what that was and what it usually meant.
It was a wordless conversation.
And Xavier, who had been doing so well with his restraint, felt it falter as he stared into those startled but resolute eyes.
Ah.
He knows.