by turns touching , raucously amusing , uncomfortable , and , yes , even sexy 
(ROOT (PP (IN by) (VP (VBZ turns) (ADJP (ADJP (VBG touching)) (, ,) (ADJP (RB raucously) (JJ amusing)) (, ,) (ADJP (JJ uncomfortable)) (, ,) (CC and) (, ,) (INTJ (UH yes)) (, ,) (ADJP (RB even) (JJ sexy))))))
(ROOT (PP (IN ) (VP (VBZ ) (ADJP (ADJP (VBG )) (, ) (ADJP (RB ) (JJ )) (, ) (ADJP (JJ )) (, ) (CC ) (, ) (INTJ (UH )) (, ) (ADJP (RB ) (JJ ))))))