Huh?
I don't really know what this has to do with yiff?
I saw this one was using mgs theme from the portal so i checked it out.
Nevertheless. If you don't know... Yiff is a sexual intercourse (hah listen to. Sound like im talking to a kid) okay.*clears thorat*
Yiffing is when a human and an animal is having sex! or if both are animals, That also relates to furry wich is drawn animals in humanoid shapes. The have a tail the animals face with some human looks to it and have fur. And usually they have paws or hooves for feet. or paw-ish hands.
Now you know what a furry is, Look it up if you need more explanation.
and try to start something serious will ya.^^