They slide down the mountain

As much as Bowser would like to go and squash Wario like the bug he is, there were more pressing matters. Besides, technically Wario just did what Bowser had asked, although he had taken it too far.

"Hold on!" Bowser shouted. He rolled over and pushed off with his legs. Peach grabbed onto his arm, while her knees clamped around his waist as they slid down the mountain, using Bowser's hard shell like a sled. They went over a large bump, and when they landed, Peach came down forcefully onto Bowser's shaft. She gasped in surprise. but smiled as Bowser reached around and grabbed her ass to keep her there. It was a rocky descent, and with each successive small bump, Peach bounced up and down on Bowser's cock.

They gasped and moaned all the way down. As they landed with thud at the bottom of the mountain, Bowser finally couldn't hold it anymore and exploded deep inside the Princess. She gasped as she felt wave after wave of hot semen shoot up into her, and her pussy clenched around his cock as if to squeeze out every last drop. In exhaustion, Peach collapsed, falling forward and laying on Bowser's chest.

He gently scooped her up and brought her to a nearby hidden cave. He made her as comfortable as possible, then just lay beside her admiring her beauty. He had finally won her heart.