Famous Cases | Historical Tales | Vampires | Zombies
Leon Forde (20) of Shuttleworth House, Lincoln, allegedly ordered the 13-year-old to take her top off, telling her he wanted to "try something" on her.
He told her to face away from him and seconds later she felt a sharp pain.
Lincoln Crown Court heard yesterday that Forde had cut her across the back with a razor blade.
The girl, who cannot be named for legal reasons, told the court: "He said he wanted to try something on me. He said "you're interested in vampires, aren't you?"
"I said that I was - kind of. I took my top off and he got me to turn around and face the window."
The girl said she kept looking back over her shoulder to see what was going on.
"He got something out of his drawer and then he struck it in my back and dragged it down," she said.
"I guessed it was a razor blade - it hurt."
The girl said she shouted out in pain and stumbled forward onto Forde's bed.
"He grabbed me. Then he just sucked it up," she said.
The girl also claims that on another occasion she was asked to play a game with Forde, in which she was blindfolded.
She told the jury that Forde dragged a scalpel blade down her.
The act left her with a mark on her right breast.
She told the court that Forde also persuaded her to cut him across the shoulder blades.
Forde then told the youngster to suck his blood as he lay face-down on his bed.
But she said she couldn't carry out the act and instead, she used her nails to give the impression that she was biting him.
"I didn't want to suck his blood, so I pretended," she said.
"I think that he's sick and that his life is pretty messed up. He used to cut himself and drink his own blood - I saw him do it."
Julie Warburton, prosecuting, said the vampire-style attacks occurred just months after Forde had raped and sexually abused the girl.
She said Forde first met the youngster through a relationship with one of her friends.
The incidents only came to light after the girl received counselling following a suicide attempt.
"It appears he had an obsession with vampires," she said.
Forde denies two charges of assaulting causing her actual bodily harm by cutting the girl between October 1 and December 31, 2002.
He also denies two rapes, an indecent assault and five charges of having sex with a girl under the age of 16 between May and October 2002.
Forde insists that the incidents never happened.
The trial continues.