From the doggy-style position, you hook your pinky fingers in her mouth and pull back to achieve deeper penetration.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

A sexual act in which two middle fingers are inserted into a woman's sphincter, and then pulled apart in order to make the sphincter gape.

While doing a skank doggy style reach around and stick both your pinkies in the girls mouth and pull back for better penetration. Great for lulls with penile insensititvity.