Dave began to take a step back but stopped before Mary put her hoof hand on his shoulder. He stared into Mary's eyes trying not to gawk at the fact she had a little muzzle now. "Babe, it's still me under all this," Mary said as she began to rub his shoulder. Dave immediately felt at ease as his very large girlfriend tried to comfort him.
Without missing a beat, Mary attempted to hug Dave. In comparison, Mary was at least a foot and a half taller than her boyfriend. Dave could feel himself sink to the warm furry body, which was his girlfriend. Her body felt so soft and large, Dave couldn't help but nuzzle his face in Mary's F-Cup breasts. "Oh? I see you've changed your tune about me now," Mary giggled. Mary used her "hoofs" to bring Dave's face up to meet her's. They kissed, with Mary's now large tongue filling up Dave's mouth very easily.
As they continued to kiss, both of them made their way to Mary's bedroom. Mary plopped down on her bed causing it to creak a little. She bounced on it feel her large hindquarters smoosh into the fabric, making her butt feel like a soft, furry pillow. Dave was twiddling his thumbs with anticipation. "Marry, I want to be on top of you." Mary obliged Dave, and lay back in her bed. She spread her legs and grunted as her barreled out horse belly wobbled with her movements. "I'm all yours."
By this time Dave had removed all his clothes. He jumped onto Mary and sank into her glorious mass. Her massive belly pressed up against his growing member and made him grunt with satisfaction. She was like a giantess compared to him. Everything was massive, from her breasts, her belly, her hindquarters, and her...
Dave could feel his mouth water as he stared at Mary's giant horse vagina. It's black nether lips called to him. Without hesitation, he inserted his member. He could feel his penis become lost in her wet walls as he slid back and forth. Marry was whinnying below him, his thrusting becoming more methodical as they both rocked back and forth.