"Don't get drugged."

If you shapeshift into Lexie and try to get answers out of Zak Weston, he offers you a glass of vodka as he tries to rope you into a naked photoshoot. If you actually go through with it, you quickly discover that your drink has been spiked, causing you to lose control of your powers and revert to your true form right in front of Zak.

Example of:
Intoxicated Superpower Snag