Nails as any man will tell you, are the focal point of much eroticism. Check out Uma Thurman in ‘Pulp Fiction’ with her red, red talons. Or Jessica Rabbit, the ultimate sexual Venus trap, in ‘Who Framed Roger Rabbit’. The shape, the length, the color of the nails is all clues to the persona of the wearer. Sweet preppy college girls might have unvarnished oval nails, while club-goers might slather on black or Chanel Vamp into lone talons. Gently elongated fire engine red ovals might look ever so tempting for …