Couple Monkey 1 :

one looks interested and the other way , shy. They are now so close.. AWwww
They are in action ... AwwwwW
Sits around
Couple Monkey 2:

One looks into the other . The other has its head down. Shy
Making the move... AWwwww
In the heat ... AwwW
Peak - a - boo
Oops. They are fast and rough in action .. Awww
Stares into the eyes .. Awww
The naive look ... Awww

This is what most of the animals were doing , mating in the open . People like us stole their privacy. They were really adorable and naughty in a cute sense .