Frank knew Jack had never f****d his wife's ass and taunted him by saying, "Damn Jack, your wife has a nice f*****g ass."
He knew he was antagonizing Jack, he enjoyed giving the other man shots about his inability to ever f**k his wife's ass. Melissa appeared to love the rough f*****g he was giving her and Jack felt a twinge of jealousy. She would let anyone who wanted to f**k her ass do it, everyone but Jack. He was planning how his turn would go, he could f**k Melissa from behind too and then surprise her by putting it in her ass. But he was afraid she would reject him in front of everyone and he couldn't handle that sort of embarrassment. Instead of trying to sodomize his wife, he decided to f**k Jenn's big round butt again in hopes of making Melissa jealous enough to let him butt f**k
