That mentality is of a 4 or 5 year old wanting to play doctor and showing off their privates.yeah, I blocked him after that, but it was shocking and disappointing. I was kinda liking the guy, but it was double whammy -- not only was he a prick for sending it, but he was tiny. he was sitting in a bathtub. If we had been dating for years, it may have come across as funny. I just can't get into this internet dating thing.
If an adult of any age is doing that sort of thing in the name of the "dating world" - I would totally disregard them as any viable candidate for further interactions.