Y'all, I'm begging you not to be weird if someone turns you down or says no to pics/sexting/literally anything, even nonsexual things.
It's so uncomfortable when I'm like "no thanks :)" and then I have to spend 15 mins soothing you. Like it's okay if you didn't realize that was a boundry—now you know. It's okay if you misread signals—it happens. Just say "no problem, thanks for letting me know," and move tf on. Deal with that embarrassment in private. It's happened to everyone, and it sucks, I get it. Also, you need to deal with it without making it my continued concern.
I wanna take this further and say cultivate the same positive reaction you have to receiving a ‘yes’ to receiving a ‘no’. As stoked as you are when you get a yes be just as stoked to get a no. Be excited that someone felt comfortable enough to communicate a boundary to you.
if you're embarrassed and ashamed of being told no and realizing you stressed someone out, the best way you can demonstrate that you care for this person and their boundaries is to back off immediately, give them a reassuringly casual acknowledgment, and then demonstrate you can handle rejection cheerfully. groveling apologies don't make up for a transgression, they only compound it.