He grows...

Bowen only noticed the heat spreading up his erection when it became painful and even then he pushed it aside as the pleasure steadily built in his groin. He'd never felt anything like this, hadn't even imagined anything more than touching a fairy before this morning. Now he was balls-deep in this demonette's throat and he was loving it. Her mouth was just so soft... and HOT. He gritted his teeth as the heat bordered on unbearable and tightened his grip on her head, grabbing onto one of her horns for a better hold.

Lilith was enjoying herself a bit more than she'd expected. The boys hard cock pummeling the back of her throat was almost pleasant and her own erection was straining against its metal confinement. Without really realizing it, she'd worked a hand into her "chastity belt", trying to wiggle it off her hips one handed. She really wanted to keep stroking the base of his cock, to stop him from entering her throat... but she also really wanted to be able to stroke her dick...

Sacrificing her last bit of control over his actions, Lilith's hand dropped to her waist to work on shimmying out of her last garment and Bowen's woody rod plowed right down her throat. He slowed his thrust as he cleared the entrance, groaning throatily but insistently forcing himself deeper and deeper. Lilith's eyes rolled back slightly as her lips came into contact with his stomach and his fuck stick stretched open her esophagus. Her long tongue slipped past her lips of its own accord, licking the bitter sweat from his nut sack. He held her there for a long moment, working it as deep as it would go, and her lungs reminded her that they still needed air. Eye's snapping to attention, her own throbbing erection quickly forgotten, Lilith's hands returned to Bowen's pelvis. Time to stop playing around, falling prey to her own desires was exactly what had kept her from success all this time. Pushing with all her might gained her little ground, she was quickly exhausted and Bowen slid back in the few inches she gained, groaning appreciatively.

Unable to cough, scream, or rebuke the stronger fey, Lilith could only swallow and plead silently. Bowen took little notice of her feeble clawing on his bark-like skin but he began thrusting again as her throat rhythmically contracted around his length, "Oooh yeah.." After she'd gotten a few mini-breaths in between thrusts, Lilith glowered up at the oblivious treeman, promising herself that she'd kill him the instant he - Gack! - A particularly strong thrust caught her off guard and tears spilled from her eyes. If she didn't know better, she'd swear he was getting longer or at the very least thicker. She couldn't even bite down anymore, not hard enough to scathe the tough flesh. It couldn't be... no... She'd been trying to change him the exact opposite way! She was supposed to be in control! The plan...

She held on for dear life as Bowen's unrelenting thrusts quickened and a strange yet familiar tightness seemed to seize his balls, smacking against her chin. Wait, NO! Cum seemed to be the catalyst for change with non-fairy magic, which Lilith could personally attest to. Any and all mind or body altering effect could be traced back to the seed of someone or somethings loins. She renewed her struggles: kicking out with her legs to try and push him over, clawing at his bark with her nails, channeling her magic to blast him away...

Too little, too late, "OOOOH!" Bowen slammed his stomach into her nose hard enough to bring tears to her eyes. Not that she noticed as his immense schlong suddenly seemed to double in size, almost seeming to reach her stomach, and her eyes bugged out. A gurgling rush pulsed through her neck and a warm sloshing filled her stomach. She could feel the power of the cum trying to twist her essence and she clenched her muscles, metaphysical and real, trying to prevent the corruptions spread by walling it off with her own darkened power. It seemed to work, the treeman's cum swirled violently inside her but couldn't get a hold of the oily shadows that she shielded herself with. Stars blinked in and out of her vision as her air supply dwindled and more and more cum filled her belly.

She just had... to hold... on...