Your flexible body allows you to reach farther than normal.
Prerequisites: Small or larger size, nonrigid body or a nonrigid attack form such as a tentacle, feeler, or pseudopod.
Benefit: Your body or a part of your body with which you can deliver a melee attack is boneless and flexible, allowing you to threaten a larger than normal area with melee attacks. Add +5 feet to your normal reach.
Source: Savage Species, page 34.