When a session of fingering your girl starts to get a little dull, let it all end with a bang. Slip your fist inside of her vag, and without warning, extend all of your fingers as far as they can reach. The expression on her face should resemble some sort of surprise.
It was a rather uneventful night until I busted out my ammunition and let that bitch have a hand grenade.
When I saw the slightest hint of boredom in her eyes, I busted out a hand grenade that would have had the vietcong shaking in their boots.