Very interesting. Women don't know how lucky they are!! :)
That said the real unfortunates are fruit flies. The variations of sexual strategy and changes in penis morphology amongst sub species are extreme to say the least.
As I understand it, one morphology allows for a male to circumvent the usual method and beat competing males by piercing the body of the female to inject the sperm directly to the egg.
I also understand that another variety of male morphology don't bother with the females at all.... they just pierce another males sexual organs and inject their sperm in there so they have to do all the hard work of buying flowers and being charming etc.
..... and I think the sperm once stretched out straight is longer than the fly itself.