If you have gotten some on your hands, there is a good possibility it could have been absorbed.
Furthermore women can absorb testosterone from semen. That and then increase in pheramones e.t.c from multiple arousals present likely explain things. You would know if you had absorbed alot by if you have changes in your menstrual cycle.
You would have to drench your hands in the injectable solution every day to absorb enough test to make any real difference.
There is no way this lady can get enough testosterone absorbed via that route. If she is, then both her and her husband need to sit down and figure out why in the hell they are spilling more gear than they are injecting.
I have been on for quite some time, and my wife has been there to help me with the libido issues, and injecting (she give my shot at all sites but the quad) - and there is nothing changed about her.
This is not a hormone problem. The lady is just getting it a lot, and it has ramped up her own libido.
A significant change in sexual activity can also have an effect on a female’s menstrual cycle.
P - I think you are scaring this lady more than she needs to be.