Lupa's Brain

Lupa's Brain is a miscellaneous item in Fallout: New Vegas.

Characteristics
It is one of three possible replacement brains for Rex in the quest Nothin' but a Hound Dog. If it is used as a brain for Rex, he will get the Blood of the Legion perk, which increases his DT by 10.

Variants
Rey's brain Violetta's brain

Location
Located in The Fort during the quest Render Unto Caesar. After defeating Lupa in a battle, Antony will allow you to take her brain. You can also simpily kill Lupa, but this will make the Legion hostile.

Bugs

 * In the course of the quest Nothin' But a Hound Dog, it is possible to stealthily kill Lupa and loot Lupa's brain from her corpse. If she is successfully killed without the player being noticed, Antony may not "notice" that Lupa has died and will still give you the option to fight her in the arena for her brain. If the player accepts, it is possible to obtain a second Lupa's Brain. Having 2 of the brains in your inventory will cause Dr. Henry to not recognize that you have the brain at all, making it impossible to give Rex Lupa's brain. To solve this, either revert to an earlier save, or enter "player.removeitem 0013d851 1" in the console, without the quotes. Make sure that you only have one instance of Lupa's brain.
 * It also appears that you cannot put Lupa's brain into Rex after you complete Nothin' But a Hound Dog; Dr. Henry will not give you the option of exchanging the brains.