::your boyfriend leans gently in, whispering with an Italian accent::
“Your bag. It is giving me the. How you say. Erection.”
No shit, what more do you need than your ID and some cash at a freaking bar for chrissake.
He has to be gently rocking his hips (as if rubbing his genitals against it), stroking the bag with his hands and making eyes and faces like some horny insane TV/Movie European guy for this to be of best effect.
Then watch how fast the bag gets moved. 
“Your bag looked like it need some extra spunk.”
This is the kind of thing I carry all the time. Key, cash, credit card, license. Done.
My guess? Keys (sometimes quite a few) and a key chain. Cell phone (not all of them are razor thin). Wallet (stuffed with credit cards, bills, receipts). Make-up. Tampons. Notebook and a pen. Book or magazine. iPod. Sunglasses. Camera. Change of clothes. Change of shoes (e.g. flats for later when their high heels are killing them). Etc. etc. Assuming this woman didn’t drive to the bar.
You win.
Wow. There are two etc’s after all that ??? I think I might have to turn in my “woman” pass.
When I read “Assuming this woman didn’t drive to the bar”, I thought it almost implied she parked inside the purse. 