There is the momentary flashing of bright lights behind Dean's eyes and his head hits the floor, but it quickly clears. It's not unusual for him to find himself on his back with a woman on top. Seeing her fist heading towards him he brings an arm up to divert the blow. Her fist slams into his radius and ulna like a mallet and his arm goes tingling numb. This doesn't stop him from grabbing her with his other arm and trying to hurl her off him.The girl's a viper. He needs even ground.