Women's clothes fetish?! HELP

mar 🌸 • { my boys } 👶🏼Weston 8•19•16 💙 Ty 5•3•16💍
Ok. Sort of a long story here so bare with me. I am looking for some advice. I recently posted a picture of my prom dress on craigslist to sell and I get a text message asking about it today. The person was asking me questions about it and then proceeded to tell me they are a guy and wondering if I'm still ok with selling my dress to them. Me thinking it was a gay teenager just looking for a dress to wear to prom, I really had no problem with it! He then proceeds to tell me he actually has a woman's clothing fetish and wouldn't be wearing it to prom and prefers it to be dirty. This definitely threw me off guard but, who am I to judge?! Lol I really don't mind where the dress goes as long as I get my money for it. He then continues to ask if I would like to sell him more used clothes of mine that he would pay really good money for (cash).  I have a boyfriend and I told him that I'm not sure if it's appropriate and I'd have to ask him about it first. What do you ladies think?! Would it be crazy to sell some clothes I was getting rid of anyway for some GOOD money? Even if I knew it will be used for something sexual not involving my man? This man is very persistent too. Honest opinions on what to do here!