Racing, by L.M.

Catherine Morris was a regular girl who woke up, went to work, and went home daily.
That was until her best friend was mysteriously murdered and got fucked by her boss's son.
When she lost her virginity to, Maxwell, who invited over her for dinner, she knew it would be bad.
As she was eating, she sliced her finger and blood started to drop.
The next things she knew, she was on the floor, being held down by Maxwell's brother, Matthias, his fangs bared and his voice a low growl. His eyes were a bright ruby red, staring at her with a thirst for blood.
He was a vampire, and that meant his family was too.
Catherine fled back to her shared apartment with her roommate, Brian, and immediately fell asleep.
The next morning, she woke up in a different room.
She had been kidnapped by the Vixens, but not for bad intentions.
Since she knew they were vampires, they had to make her keep it a secret by keeping her in their own home.
They explain to her that she is no longer safe. That other vampires and vampire hunters will try and kill her for even so much as associating with them. She agrees to stay, but under one condition:

She wants to stay alive and keep her heart racing.