I know this is a silly question but please just give me a serious answer. The only times she has asked me for dick pics has been while I am at work (I E, we are not together). It seems to me like a shit test because if she really wanted a picture of my dick, she would just take one while we are together. I would be fine with that as I have taken pictures of her naked plenty of times. But when she texts me asking, it seems more like a "Let's see if I my boyfriend is so whipped I can get him to do this" sort of shit test.

Is my assessment accurate? If so, how do I respond to these requests in a way that passes the shit test while simultaneously creating sexual tension? My first thought would be "Cant do it babe, my dick is resting until I can fuck you next" or something like that. If anyone has any other input feel free to share.