Paolo set about Sofia quite roughly for him. He didn't hit her... he never would as the father he loathed regularly beat his mother. He was just very assertive and Sofia judged it sensible to appear to put up some resistance, but in reality she was partial to a bit of roughness in a man from time to time and she was rapidly recovering from her earlier fear. She 'turned up the sound effects' for Paolo's benefit.
Paolo was quick and physical; he'd been waiting too long for anything slow and sensual. His mood changed as control reverted to Sofia.