How about Mycroft denying his feelings for you and then his body does something is hasn't done in years like a wet dream (finishing one to so sheets are a mess) and he can't deny them anymore
Dear Lord, not this mess again Mycroft thinks as he comes to feeling cold and sticky from another night time emission. Careful not to spread any further fluids he inspects the damage this time: the entire left pant leg of sleep trousers and a good foot of the bed surrounding his groin area.
Gingerly Mycroft tries to toe off the soiled pants and trousers while lamenting on why he had reached this point again for the third time in two weeks.
She wasn’t that special, Mycroft tried to rationalize as he put on a clean pair of pants and begrudgingly started to pull off the sheets again, annoyed whenever the left corner wouldn’t budge.
And indeed there wasn’t. She was just another acquaintance brought on through a series of events caused by Sherlock’s many exotic cases who happened to have the right skill at the very time that Sherlock needed her.
Mycroft had debriefed and reimbursed her for her troubles dealing with his brother which probably only took ten minutes of his time to interact with her. All she did was smile, thank him for thinking of her and left the check.
It wasn’t odd to have people that he tried to sway or thank snub his monetary contributions (as Watson and a few others have also done so in the past) or too outstanding to warrant these pesky dreams where she played the starring role.
Whether it was in his waking thoughts or nightly wishes she was there beckoning him in that creamy blouse and jeans. Her eyes smiling in such a mischievous manner and her lips wide with silent laughter. The room around her was always so warm and inviting that Mycroft could almost imagine that it was like being engulfed by her presence.
“Come to me,” she seemed to say right before Mycroft would find himself soiled again.
Finally tearing off the left corner Mycroft is able to rid the bed of the dirtied sheets and feels the mattress once more. Its quite clear that if the pattern continues he’ll need a new one custom made and he knows Yuri takes almost a year to manufacture his personalized products.
It becomes clear to Mycroft that he can no longer put off his feelings if not for his sanity but for his bed.
He was going to hunt down that woman and take her out to dinner.