Blow on her chest

"Fine with me!" She says, as she flicks your thrusting shaft with her thumb.

"OH GOD!" You yell, and start blasting gouts of hot semen, pleasure burning through every core of your as she squeezes her breasts around you, as you press her bare back with your hand, as she grins through her flush, blushing cheeks. You watch semen decorate her breasts, her smooth neck, even a bit of her face as she looks down to see you cumming. Never once does she stop smiling.

You feel Diana rubbing your back as your orgasm finally fades. "Good job," she murmurs.

You run your hand down Grace's back, feeling her smooth musculature, and finally step back, looking down at this beautiful young woman, grinning and covered in cum as she celebrates making you orgasm with her amazing tits.

"THANK you!" you say to her.