You've got quite a collection. Are they all your thongs, or thongs you have taken from others?
Then, I must say that your gf has got some sexy thongs and strings. And you're lucky to wear them. Does your gf know that you wear her thongs? You two can go thong shopping together and pick thongs for each other.
She has no idea and would most likely not be happy. I would love to go shopping together. I buy her stuff I want to try on!!