Remain and observe Rachel consuming Kyle's soul

Prompt: Remain and observe Rachel consuming Kyle's soul

Turn 23:

Rachel's crimson hand wraps around Kyle's shaft, and the moment her transformed flesh makes contact, something fundamental shifts in the room. The air thickens, becomes visible—shadows coiling around the two siblings like curious serpents.

"Just let go," Rachel whispers, lowering her mouth to hover above his cock. Her forked tongue flicks out, tasting the salt and desperation coating his skin. "Stop fighting what you want."

Kyle's response is immediate and total. "Please," he gasps, his hands coming up to tangle in her hair, careful to avoid the horns. "Please, Rachel, I need—"

She takes him into her mouth, and you watch the exact moment his soul begins to loosen from its moorings. It's visible to your demonic sight—a luminous thread of silver-blue light that connects his chest to his cock, pulsing with each heartbeat. Rachel's eyes blaze brighter as she works him, her forked tongue doing things no human mouth could manage, and that thread begins to fray.

"Oh fuck, oh god, Rachel—" Kyle's voice breaks into a keening sound, his hips bucking up despite the soreness, despite everything. His fingers tighten in her hair. "I'm gonna—"

The thread snaps.

Kyle's orgasm tears through him with **** that makes his entire body convulse. What little semen his exhausted body can produce spurts into Rachel's eager mouth, but that's incidental—what she's really swallowing is that silver-blue light, that essence of self that makes Kyle who he is. She drinks it down in great gulping swallows, her throat working, her eyes rolling back in her skull.

The ecstasy hits her like a physical blow. Her back arches, her wings—yes, wings, small leathery ones—burst from her shoulder blades with wet tearing sounds. She releases Kyle's cock to throw her head back and scream, a sound of pure pleasure that shatters both windows in her bedroom. Her entire body pulses with stolen light, absorbing it, metabolizing it, transforming it into raw demonic power.

"Holy shit," Kyle says, and his voice has changed. Gone is the guilt, the horror, the self-recrimination. He sounds... amazed. Delighted. "Why the fuck was I so worried about this?"

He reaches down and pulls Rachel up into a kiss, his tongue sliding against her forked one without hesitation. When they break apart, he's grinning—actually grinning.

"That was incredible," he says, running his hands over her crimson skin, tracing the edges of her new wings. "You look so fucking hot like this. Can we do it again? I want to fuck you properly this time."

Rachel laughs, the sound like breaking crystal, and looks at you with eyes that now burn with the same ancient hunger you carry. "See?" she says. "He's perfect. And he's mine."

From downstairs, you hear the sound of a door opening. Footsteps in the hallway. Howard's voice, calling up the stairs: "Kids? Your mother and I need to talk to you before we leave for work. Can you come down?"