The knocking sound occurred again. It was the bathroom door.
"Yes? What is it?" She demanded.
"Sorry Magnus, there's someone at the door. They say they need to see you as they have unfinished business." Henry replied.
"Did they give you a name?"
"No, she just said it was urgent!"
'She?' Helen couldn't figure out who it would be, but it must be urgent this time of night. "Let her into my office. Tell her I'll be there in a few minutes."
Helen got out the cold bath and wrapped herself in a towel. She took a few minutes to brush her hair out of the bun she had tied it up in for the bath and slipped into her dressing gown. She would dress properly in her bedroom.
On her way down the hall, Helen pondered on who it could be. Her question was answered as she opened her bedroom door. Behind it, stood River Song.
"Hello Sweetie"
"Dear god! River! Whatever are you doing here?"
"Didn't your friend tell you? I have unfinished business."
It was very late at night, so Helen was careful not to wake the others and ushered River into her room, closing the door behind them. Suddenly she was pushed against it. River had her by the waste and was restricting any movement by pressing her own body against Helen's.
"I thought I'd never see you again" Helen admitted. "How ever did you find me?"
"Spoilers" River sang.
There was no more talking. Helen had found River's tongue wrapped around hers. Helen understood what River meant by unfinished business. It was her turn to take control. She did this by using her strength to overpower River and stand tall away from the door. She grabbed River by the hand and led her to the bed where Helen pushed her down and pulled off River's trousers. Making a show of it, she removed her own dressing gown.
She saddled River and pulled off her t-shirt. They were both naked again. Helen made easy work of showing River who was boss. It didn't take long to pleasure River the way she had done to Helen earlier that day. Helen knelt up on the bed, however almost instantly, she was laid underneath River. They kissed for one final time and River rolled off of Helen, to lay at her side where they both fell asleep gazing into each other's eyes.
Helen woke up alone. 'Had it been a dream?' She would never know because her lover had left without a trace, leaving behind only the scents of their love making.