Watch the Big Bang Theory Season 3 Episode 21

Watch the Big Bang Theory Season 3 Episode 21

.,.Sheldon has a houseguest. A female physicist in the person of Dr. Elizabeth Plimpton, both Sheldon and Leonard competes for the attention of the lady physicist.

Watch The Big Bang Theory Season 3 Episode 21: The Plimpton Stimulation Full Video Here

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Watch the Big Bang Theory Season 3 Episode 21