And as she was falling over she grabbed my crotch

She says it was because the BART train lurched forwards, though I don't believe her. I think she just wanted a feel.
The good news is that through a combination of my penis and my grabbing her arm, I managed to prevent her crushing a poor little eleven year old boi who looked terrified afterward. The dear child was such a wimp, rich kids shouldn't be allowed on public transportation, their brains are not capable of dealing with the traumas.