Well crap..so much for the secret.

He scrambles to the edge of the blanket in an attempt to hide. He shoves his head under the blanket and pulls himself under it.

"It's not a curse..it's a tea." Nothing to panic over. Not really anyway since he can simply undo it. He hasn't quite perfected the shape shifting but he feels rather proud of himself for being able to fool Lan Wangji for a little while.