A little Detective work.

People have always praised Batman as being the 'World's Greatest Detective', having the technical knowhow of his computer, his variety of gadgets, but most importantly... Because he has the strength, the smarts, and a fighting spirit that never yields.

Batman toiled at his computer for hours, clacking his fingers rapidly against the keyboard of his bat-computer. And this was after recently teaming up with you. He searched about and documented everything about the nanites coursing through your veins.

He knew how it all began: you volunteering to human-test them because of your past deteriorating condition; your **** occuring by their function. After bypassing firewall after firewall of a tight security software did Wayne get to the heart of the matter: an experimental component imbedded in each of the microscopic robots, which allowed them to interact with each other and your stimuli to not only protect you to the best of their abilities, but in order to also better improve the quality of your biology.

If only to minor degrees...

'Given that Shadow has had intercourse with only a few of the female members of the League,' he thought, 'his nanites may learn how to adapt more abilities into his being. He could be dangerous...' Batman did understand that your robots had limits to what they could pull off, including but not limited to: solar empowerment, so the robots could work more proficiently in sunlight, like Supergirl; Vixen's ability to extend and retract her claws like a cat; but what else? Who else did Shadow have? There was... Diana, as the thought of you two together sickened Bruce a little. And there was Huntress, Black Canary, Zatanna and Poison Ivy, due to Clark telling him after Kara informed him. And there was Dr. Katari, according to the Watchtower's security footage. And... 'Barbara...'

While momentarily disturbed by the thought of Batgirl being amongst others that you've slept with, it seemed very clear that their primary goal is your well-being and protection. And so far, different abilities have racked up due to your 'partners'. That made Bruce wonder if your male coworkers' abilities could be assimilated, too. But luckily so far, no evidence supported his theory...

Yet.