Pipes vibrating only when running one fixture.

[HemiMoparGuy1981]

Hey Guys, having a banging/vibrating issue. The only fixture that has an issue is her sink in the master bath. Not sure if it is related, but it happens to likely be the farthest fixture from the source. When she turns the water to warm and has it running good pressure, it starts clunking. My sink only 4 ft away doesn't do it, nor does any other fixture. If I turn my sink faucet on at the same time, it goes away. Any ideas where I can start looking? Thank You in Advance.