Given the rather mature nature of this fic, below is just a tease. If you like what you see and want to know just what Helen, John and James get up to, send me a pm for a link to LJ or AO3. BUT, please be aware that while the teaser is rated "T", the fic itself it a strong "MA." Do not venture beyond the teaser if that is not your cup of tea…

Helen Magnus couldn't sleep. Oh, she'd been positively exhausted earlier when she'd left the boys to turn in for the evening. Nigel and Nikola had already headed into the night to seek their entertainments whilst she, John and James had remained behind to continue puzzling out their next move in their experiments with the Source Blood.

Her father was at a house party in Surrey and would be gone a fortnight, which made both the work on the Source Blood, not to mention having John in her bed nightly, far less difficult. Gregory would have a seizure if he knew what Helen and John were getting up to while he was away; she smirked as she started down the stairs. Helen felt that if it were more respectable, acting upon the stage might have been an excellent career choice for her. By all outward appearances she was the quintessential bluestocking, and she never gave her father reason to suspect she might be anything else. He trusted her both in the company of his friends and colleagues, and with her own cadre of male friends. Being the perfect daughter had its perks.

Tonight she was feeling antsy and needy, and decided that if John and James were still awake, she would pack James off to a guest room and coax John into doing unspeakable things to her. If they weren't, well, she'd just have take care of things on her own.

Helen saw the light shining under the heavy oak doors to the library, which was both wonderful, because it meant they were still up, and puzzling, because she had left the doors open upon her departure. She approached the doors quietly, resting her hand on the doorknob, trying to hear the conversation on the other side so that she could enter without interrupting their train of thought.

She placed her ear to the seam of the double doors, not really expecting to hear much given the size of the library, but wishing to be conscious of her friends' desire for privacy. They had closed the doors, after all. As expected, she heard little and moved to turn the handle just as the unmistakable sound of a groan, muffled as it was by distance and doors, made its way to her.

Alarmed that one of them might be in trouble, Helen burst through the doors and stopped dead in her tracks, speechless at the sight in front of her…