The act of having sex without a partner present, like playing guitar without a guitar.
The reasons for starting an air fuck vary, common triggers are boredom, horniness and frustration.
Normally performed manually with some external stimulation like for example:
- pictures/video of sexual acts you would rather be performing but don't have an available or willing partner for.
- Pictures/video of a person you would like to have sex with but will most likely never meet (and if you did it wouldn't happen anyway).
- Footage of your favourite animal in compromising positions.
- etc. etc.
Note: Females have the ability to perform the air fuck without the need for these visual stimuli by conjuring up pleasing images and fantasies in their minds, men lack this gift.