Mike slows things down.

Mike dropped his head back and let out a lusty groan. It had been a long time. Every part of him reveled in the delectable sensation of Joanna's mouth wrapped around his eager cock. Her tongue teased over the tip with practiced skill.

He wanted her, Oh God, did he want her! And she wasn't just a hot piece of ass, offering to put an end to his arduous dry spell. He genuinely liked her. She was smart and funny, and loyal to Peter.

Loyal! He stifled a snort, as a wave of bitterness washed over him. Wasn't Joanna in the very act of proving that she was just another cheating whore. What business was it of his, if Peter got hurt? Why shouldn't he take advantage of the situation, fuck the slut good and hard, and just walk away. He had been ready to move out for the past three days away. He was only stalling the inevitable because he was enjoying playing house with Peter and Joanna, and dreaded the idea of being completely alone.

Joanna lifted herself up onto her elbows, to take Mike's cock into her throat. He felt her shudder slightly as she struggled past her gag reflex to take his full length. God, she was hot. Sexy Joanna, Peter's wife, was sucking his cock like a greedy slut and... He tried to give into his bitter rage, to lose himself in the moment, . But guilt had seized some corner of his mind and refused to let go. This wasn't him, it wasn't who he wanted to be, and no matter how angry he was at Helen, he didn't want to deal with his rage by destroying Peter and Joanna's marriage, and if he didn't stop her now, he would lose the ability to stop her at all.

"Joanna," his voice came out cracked and hoarse, barely audible. He tried again, "Joanna, you have to stop."

"Mnmmm?"

"Joanna. Stop." Mike placed a hand on her shoulder and slowly eased his hips away from her, even though every impulse in his body opposed his decision. "This isn't right."

Once the contact between them had been broken Joanna instantly recoiled in shame and horror. She sat up abruptly, forgetting her loose bikini top which dropped to her lap exposing her perfect breasts. She clutched at her bikini top and covered her breasts with her arm.

Joanna scrambled to her feet, but Mike was a step ahead of her. He didn't want her to run away. He didn't want to break the trust that had been so slow to build between them. He grabbed her shoulders and pulled her to his chest in a firm embrace.

"Please don't run away. I want you. I want you bad. I just couldn't stop thinking about Peter, about how badly I was hurt when Hellen cheated on me. I don't want to destroy your marriage."

Mike felt a muffled sob from Joanna and pulled back to look at her tear streaked face. "I'm not sure if you noticed Mike, but my marriage is already fucked. It's been that way for a long time now."