Out of curiosity...have you asked her "why the sudden change of heart on this?" In a non-threatening "I like it" manner?
As for her O'ing that quickly...are you positive she really is? Maybe some others on here have experienced a woman O'ing that quickly...but I know that doesn't happen with me, nor any of my close female friends that I've discussed this with. Perhaps though your W gets herself worked up to the brink of it before you even start.
It seems like a BIG change that's happened very quickly. Not that this couldn't happen...everyone's different. Definitly take precautions...just in case she's in baby making mode.
I'm really happy she seems to be taking an interest in this
