Should I send sth hot to the boy that asked me to do so?

There's a boy with whom I have been talked over the phone for almost a month and we shared our life with each other. One day he didn't reply mid conversation. I was really disappointed and decided to test him. I sent a picture of my body after workout in the moments (not directly to him) and he immediately replied. Apparently he was turned on and asked me to send him something hot. Although I have sth that I know he would like but I still said no because I felt insecure. I was really disppointed but at the same time I kind of like him. What should I do? I want him to like me but not just for my body and appearance.
Should I send sth hot to the boy that asked me to do so?
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