The bridge that connects the two sacred cavities of a female.
If the hole bridge requires a toll, make sure your undercarriage has a protective coating to prevent damage.
The perineum- Otherwise and more commonly refered to as the taint. The area between the pussy and the ass, of which makes for a good chin rest during oral sex.
If you go down on her and miss the mark, just follow the Bridge to Holewhere. North for nectar and south if she's a Freak.