This is a great position for smaller guys for many reasons. The guy feels more confident, so more likely to really put in an effort. The position is perfect for reaching her G-sp0t so orgαsm is almost guaranteed; and she gets to really feel all the length you have to offer.
The woman should be positioned so that her head and shoulders rest comfortably on a pillow, while her butt is raised in the air. Additionally, her back should be arched and her thighs drawn together. Enter her from behind with your legs opened.
Lean forward while penetrating her, maintaining close physical contact.