The moment Cassius felt his sister's hand wrap fully around his bare cock, he shivered so violently his entire body jerked forward.
His skin was already overstimulated.
Every nerve ending raw from her teasing touches, her breasts dragging against his back, her breath on his ear, her fingers roaming like she owned him.
Now the sudden, direct heat of her soft palm closing around his shaft sent a shockwave through him.
He melted backward against her chest, head falling onto her shoulder, trembling for a completely different reason than before.
And the towel, already precariously knotted finally gave up and slid off his lap entirely.
The moment it did—Aqua's breath caught.
There it was.
In her hand. In full, unobstructed view.
And gods, it was worth every second of waiting.
She had glimpsed at his penis before, always from a distance, always fleeting.
