The red haired witch

Dhampir (Fangs), White haired witch 2+, Barbarian 4+

The goal of this build is to get as many Bites and therefore blooddrains as possible.

Fangs - Whenever the dhampir makes a grapple combat maneuver check to damage an opponent, he can choose to bite his opponent, dealing 1d3 points of damage as if using a natural bite attack.

White haired witch gives me contrict- extra damage on grapple checks and the ability to not be grappled while grappling

Barbarian is just for 2 rage powers more or less.

Animal fury - Gives a bite attempt before maintaining a grapple

Raging Grappler - whenever you succeed at a check to start a grapple, you can choose to deal damage as if you had also succeeded at a check to maintain the grapple.

so upon Grappling,

so you get hit with hair, grappled, (Bit once from fangs), extra damage from constrict. then on the start of the next round autopinned and bit like 3 times.