Good action, needs better dialogue

As I turn my office chair towards the hall, Christina walks up to me in a bikini. She turns around so that her back is right in front of my face and asks me to tie her top. I just stare at the strings and then at her arm draped across her breasts. She sits on my lap and my hands grab her waist on each side. She begins grinding me as if giving me a lap dance. She feels my cock get hard and says, “That’s a nice length and width.” My hands drift upwards to cup her breasts.