Sexting

Ok so I have a new boy in my life and we are doing long distance right now. We text normally but then sometimes I like to just spice things up. Some days I feel super confident and creative and I can come up with some good stuff but then other days I feel so self-conscious and completely blocked on anything to say. What do I do when I’m not feeling it but he seems to be? I don’t want to just all of a sudden stop texting him or awkwardly change the conversation. That’s weird. Suggestions?