The relationship between the women of ABBA (Frida and Agnetha) which they had to keep a secret since they were married to the men of ABBA; but the sexual tension can be observated very clearly in pictures.
The friglet is a delicacy amongst the French (even though they'll basically eat anything) yet is hard to catch: although it's grunts can be heard for miles, the little critter can jump 27 feet at a time, therefore anyone who's ever caught one is often referred to as being 'a lucky frigger'.
"Kermie... I want for us to settle down and have friglets"