In Chicago this Monday - a newbie hobbyist with a few experiences - looking for discretion, 25-40 years old/slim/large breast provider

As you've posted this on the wrong board. You need to put this on the Chicago Discussion Board.  The M&G board is discussions related to parties..get togethers...social activities etc....   BTW...learn how to use the review search function as there are plenty of ladies in Chicago that fit your description.  But you will probably need to initiate the contact.  I have reviews for 4 outstanding Chicago babes I can highly recommend....check out my reviews.  I assume you have purchased a TER membership....If not, your hobby experience will be limited and plan on wasting a lot of money on diapointments and rip-offs.   Go now grasshopper...have fun...be smart.