21.   From the banister of their porch, she then crouched, arched her back, and gleefully jumped over and over into the makeshift pit.

22.   His eyes dodged contact, sometimes he arched his back away from the person holding him.

23.   I pushed off, arched my back, counted to five, and screamed by lungs out.

24.   Irabu trudged behind the mound, raised his arms up high as if he was doing jumping jacks and then arched his back.

25.   Justin responded by arching his back up and opening his mouth.

26.   On break point, Rafter arched his back into the shape of a comma as he uncoiled a serve that kicked with a wicked spin.

27.   Only by arching their backs could they gain some individual space.

28.   She arched her back at my touch.

29.   She stood on her hands on a hardwood floor and arched her back until her feet touched her head.

30.   She went down to the docks and looked at the cool waters and arched her back and worked her imagination backward.