Fred was tempted to just sit there and see how much John would beg her. But she couldn't. Having her husband inside of her was making her ache with want and she wanted nothing more than to move on him until she fell over the edge. Since you asked so nicely....
Putting her hands on his sides, Fred started to slowly move on him at first. Since they hadn't been together for a while, she knew she wasn't going to last long. It didn't matter, though, since they had the entire day to make love. All Fred wanted at the moment was to fall apart.
"God, John," she breathed before she started to move faster. The more she moved, the closer she became to fall over the edge.
Soon, her body started to tremble as she started to fall over the edge. Close... She tightened her hands on him and arched her back just as everything inside her started to explode. With a strangled cry, Fred came hard around her husband's cock.