Zack tries to.

Pumping his hips, Zack could feel his cock ready to burst. The tight confines of Chloe's soft mashed up breasts felt incredibly good. He knew he was not able to last much longer. He warned her, “Chloe...I'm about to...cum...” Realizing she wasn't letting go, he took a look at her to see why she wasn't letting go.

Chloe was staring down at Zack's cock pumping in and out of her breasts, seemingly mesmerized at the sight. His words had not gotten through to her. He tried warning her again as he could feel his own will to keep himself from coming fading.

“Chloe...I'm...” Her head rose and for a split second their eyes met. Zack could see the haze of lust in her blue eyes. The sight caused his will to fade and in the split second of weakness, he pushed his full length into one last time and erupted.

His cock head had been sticking out of the top of Chloe's mashed up breasts and the first eruption hit the bottom of her chin. The second blast sent some cum on her right cheek. Chloe had let go of her breasts by this point, but her large breasts kept his cock slightly trapped, and the rest of his cum erupted inside of her cleavage.

Zack's legs nearly gave out on him, but he managed to keep himself standing. Coming down from his high, he took a look at Chloe. Her face was slightly covered in cum, the cum on her chin dripping. She wiped some of the cum off her chin with her index and middle fingers and took a look at it, spreading her fingers with a string of cum between them.

Despite having came not more than a moment ago, Zack's cock began to rise from the sexiness in front of him, but he shook his head and cleared some of the lust out of his brain. He should get her cleaned up before doing anything else. Grabbing the hand she was looking at, he pulled her up and led her into the bathroom.