contort

1. V-T/V-I If someone's face or body contorts or is contorted, it moves into an unnatural and unattractive shape or position. (面部或身体) 扭曲; 使扭曲

His face contorts as he screams out the lyrics. 当他大声朗读这些抒情诗时，脸都变形了。

The gentlest of her caresses would contort his already tense body. 她温柔的爱抚会使他原本绷紧的身体更不自然。