Then you need to just let it alllllllllllll hang out.
Nigger Penis > all.
My sig.
It speaks the truth.
Master Chef, that wave has already been ridden. Get some new material. 
On topic: One is nonproductive without the other. Not necessarily a bad thing, mind you, but they usually work in tandem.
Penis to vagina: “Think of what we can achieve as a team!”
Penis to condom: “Cover me, I’m going in!”
Vagina to penis: “Welcome to Vagina, have fun and enjoy your stay!”
Or:
“Thank you for travelling with Intercourse Lines! Enjoy your ride! If you have to release yourself, please use one of the rubber bags provided by your favourite drugstore.”
Penis to Vagina:
“eww crabs.”
I dont know how is it to have a vagina, so i guess i’m on the penis side