"And one more thing," he added, pausing to completely compose the remainder of the transformation. "Any time you see a dick bigger than your nipples, you will feel the need to bring it to orgasm twice. The harder your nipples get, the less self-control you'll have and the more desperate you will be to please. You are then released from the desire for 30 minutes per cock, winding down 4 minutes after the second orgasm. If a third orgasm occurs, it will continue to a fourth. The owner of the cock will not face consequences for anything missed while you're serving it, but you will." He saw her eyes go wide. "Alright, alright, I'll be nice now: it only works with dicks that you can see with your own eyes, completely nude. Wouldn't want you flying across the country to fuck every pornstar, would I? There's no fun in that. Finally, if the dickowner wants, you will forget about any encounter."
Jen's brain struggled to process all of this, but the curse ensured that she enacted the transform as required. Her memory and vision started to go fuzzy, and she looked down and gasped at the size of her nipples.
"They're the size of expo markers! What the fuck? And what are you doing in the girl's bathroom? Kyle, get out, you fucking creep! There's a reason I don't talk to shits like you!" Despite her anger, she could feel herself leaking milk from her inexplicably massive tits. Her eyes tracked Kyle's buff arms, watching as he moved them down towards his belt. While disgusted, she felt her pussy grow warm and almost brought a hand to her nipples before thinking better of it - she was in public.
"Leave now? When this is working so well? And miss out on the fun? Jennifer, it must have really worked, hasn't it?" He pulled his dick out of his pants, looking at it a bit himself before shifting his gaze to watch Jen's reaction. It was everything he had hoped for.
Jen's pupils dilated at the sight of Kyle's newly-grown dick. Instantly one hand shot to her chest, grabbing the ends of both nipples and rubbing them together. Her tits swung forward as she sprang off the floor, reaching around to Kyle's backside with the other hand and burying his still-flaccid manhood in her throat. She slobbered all over Kyle as her became erect - a full 10 inches. Despite the pain and the gagging, she was determined to be face-fucked and couldn't really explain to herself why.
Kyle may have grown to be more studly, but inside he was still the virgin he had always been. Within minutes, he had shot his load down Jen's throat and his boner subsided. Jen gagged as he pulled out of her mouth, a mixture of spit and cum bubbling around her lips and hanging down towards her tits. She was cumming hard, drooling cream from her vagina and breathing heavily.
She continued to jerk Kyle off - his dick had enough mass that it could take it, even when flaccid, and to her surprise he shirked away. "Wait, Jen, no, I didn't think this through! I need time to recover a bit, to get hard again!" He lowered himself to the ground, jerking himself a bit in a futile attempt to get hard again.
Jen paid him no attention, pulled his hand away, and gripped his dick with both hands, her nipples dragging against his thighs and lubricating themselves in the process. His shaft covered, Jen wrapped her lips around the head and licked it while tugging hard on his cock.
Kyle could hardly believe what was going on, and was unsure if his omission was a blessing or indeed a curse. He was almost in pain from the intense stimulation of his limp dick, as if paralyzed, unable to pull himself from Jen's brutal post-orgasm treatment. When at last Jen started to feel his cock swell again, she pushed Kyle down and started to grind herself on his dick and toned body.
Kyle, speechless, reached up and squeezed both of her tits, flinching at first from the milk that sprinkled down onto him. Without remiving her hands from his shoulders, she arched herself forward, lined her pussy up with his cockhead, and pushed herself onto it. She moaned as her hymen deflorated, but the blood was soon just another lubricant for her cock-pleasing tool. She came again from being filled up and from the nipple stimulation, and her vaginal contractions sent Kyle over the edge for the second time in 15 minutes. Although she was not aware, if Kyle held out for 4 more minutes, she would have the next half-hour (at least) to herself, relatively speaking.