The Pillow Thing

When a partner places a pillow underneath the lower back os stomach during sex.
In missionary: The pillow is placed underneath the lower back or hips, allowing for easier and deeper penetration. Often paired with " The Stomach Thing ".
In Lying doggy: The pillow is placed underneath the stomach or hips, allowing for easier and deeper penetration.

He knows The Pillow Thing!
The pillow thing makes sex so much better.