The Ultimate Litmus Test

Tim and Martin stood frozen, their faces flushed with a mixture of heat and profound bewilderment. They looked at each other, then back at the beautiful woman on the bed, then realized she was still supposed to be Tim’s father. The cognitive dissonance was physically painful.

Walter noticed their hesitation—the way they looked as if they were trying to solve a complex equation while staring at something intensely carnal. He let out a low, melodic chuckle that sounded nothing like his old self, yet retained that authoritative weight.

"What's the matter?" Walter asked, his eyes dancing with amusement as he shifted his weight on the mattress, the movement causing his hips to sway slightly. "You two look like you’ve seen a ghost."

Tim finally found his voice, though it cracked slightly. "It’s just... it's weird, Dad. It's hard because..." He gestured vaguely toward her gorgeous form. "The idea of us doing that with you... it feels like we’re breaking some kind of cosmic rule. Especially since when you speak, we still hear..."

"We hear a man," Martin finished, his voice hushed. "It's hard to reconcile that voice with... well, that."

Walter leaned back on his palms, the movement accentuating the swell of his breasts. He didn't look embarrassed; instead, he looked intrigued by their struggle.

"Weirdness is just a lack of familiarity," Walter said smoothly. "And as for 'breaking rules'... aren't we just exploring new territory? To truly understand the capabilities of this body—the sensations, the limits, the sheer pleasure it can provide—we need to push it. Sex would be the ultimate test of this transformation. We need to know if this flesh responds to touch as well as it looks. It is like the Ultimate Litmus Test!"

He paused, his gaze turning more predatory and playful at once.

"As for the voice..." He paused, letting the silence stretch between them.