NHDTB-733B - Nipple Development 3: G-cup girl becomes a submissive slut after getting addicted to nipple stimulation

I met a G-cup girl on a crowded train! I snuck up behind her, grabbed her heavy breasts, and fixed a vibrator to her nipple through a hole in her bra. After learning how to climax through nipple stimulation, she became completely submissive. Now, she's so addicted to the pleasure that she boards the train specifically looking for me, begging to be ravished.