I think I would piss myself laughing if my husband ever sent me a dick picture. I would then ask him if he was on new meds or something
We have actually spent an unhealthy amount of time today talking about strangers' genitalia. He says a lot of his friends do this and find it hilarious to talk about

His opinion is that its just the modern day equivalent of the park mac flasher and its all for shock value rather than a flirting technique