Catherine had always known she was different from other girls. It's hard not to, when every time you get sexually aroused your clitoris grows into a rock hard cock, and not a small one either. We're talking a three feet, seven inches solid ebony log and almost too thick for her to wrap both her hands around it. Every time it appeared she felt like a freak and did everything she possibly could to hide her secret. Needless to say Catherine carefully avoided sexual situations and was still a virgin when she left her home town to study English literature at Cambridge. That is, until she met Tracy.
Tracy was a new student who arrived on campus a few months into the semester, tall, slim with burning red hair, stunning legs, spectacular breasts and an ass to die for. Just looking at Tracy made Catherine's clit itch and twitch, wanting to grow to its full potential. It took all of Catherine's will power to keep it from tenting her skirt or tearing through her jeans and she had to start bringing clean underwear to school because of the involuntary ejaculations.
Tracy too was majoring in English literature which made it hard for Catherine to avoid her at school. It didn't help much either that Tracy was the kind of girl who hug and kiss on the cheek to say hello. Every morning when Tracy wrapped her arms around Catherine, pressed her perfect breasts against Catherine's and her soft luscious lips against her cheek it was almost more than Catherine could bear. And every morning after Tracy had said hello Catherine had to make a stop at the ladies room. Two maybe three quick strokes with both hands trying to aim the rock hard ebony log into the toilet bowl to avoid spraying the walls with two cups of thick sticky semen.
This caused Catherine to start arriving late for class, usually with a bright red face and a pair of sticky, smelly panties hidden at the bottom of her back pack. Then she had to spend two hours sitting opposite Tracy at the round table their professor insisted on to play down her role as an authority figure. To say that this made Catherine uncomfortable would be a severe understatement and she often found it difficult to focus on the lecture.
Eventually Catherine couldn't take any more. One morning she woke up ridden by a high fever, covered in sweat and semen from the numerous involuntary ejaculations that had happened during the night. Her cock was fully erect and so hard that it hurt to touch it. Her balls were tense and had started to turn a light shade of purple. She started to gently stroke her cock which almost instantly responded by spewing the biggest load Catherine had ever seen, at least four cups. The tension in her balls subsided for a while and her cock went limp but didn't revert back to the size of a large clitoris as it usually did once she had orgasmed. She sighed and called in sick. There was no way she could attend her classes like this. Especially since it only took about 10 minutes before the cock was rock hard again.
As she showered, after having provoked another orgasm in a futile attempt to drain her balls, she started to realize that there was something very wrong with her. Sure she had lived with her secret since she entered into puberty but never before had she had an episode as severe as this one. Usually the cock reverted back to a clitoris if she only gave herself an orgasm, sometimes two. But judging by the sticky mess she had made of her sheets during the night she had been ejaculating over and over, probably all through the night and still the damned thing was rock solid and the swollen head was slapping against her 36DD breasts every time she moved. Not even ice cold water could kill it.
She gave herself another orgasm in the shower by rubbing the cockhead between her breasts, shooting a four cups load all over her own face and hair and then she sat down in the shower and started to cry. She didn't know how to get the damned thing to go away. She would never be able to show herself in public again.
When the doorbell rang she was still in the shower and she still had a raging erection despite having given herself more orgasms than she dared count. She held her breath and hoped that whoever it was would go away and leave her alone. No such luck. She heard the mail slot open and a familiar voice call out to her.
"Hey Cath. It's me Tracy. I brought you my notes from today's lecture and the new assignment."
Catherine shook her head. Of all the people to ring her door Tracy was probably the worst one. She stayed quiet hoping that she would drop the notes and assignment through the mail slot and go away. Again, no such luck.
"C'mon Cath I can hear the shower."
There was a long silence and Catherine sighed, got up and wrapped a towel around her naked wet body. She checked the peephole in the door and told Tracy to drop the papers through the mail slot adding a cough at the end hoping to convince Tracy that she was ill.
"Sure Cath. I can do that but I really do need to talk to you too."
Cath held her breath and blinked repeatedly trying to keep the tears at bay. She could feel her face going red and when she looked through the peephole a second time her balls started to cramp and she shot a load of semen straight up between her breasts which covered her face and hair as well as the door. She bit her lip hard to hold back a loud moan.
"Cath, are you okay?"
"Yes ..." Catherine's voice was trembling and hesitant. She was far from okay.
