I suddenly grinned and let out a soft chuckle. "Very nice, cuz, but you seem to have forgotten something." Sara looked curiosly at me a moment before I said, "I wish I had a horse cock just as big as Toy's is."
Sara let out a laugh and squeezed Toy, "See, penis envy." Her words were lost on me though, as I suddenly felt a monstrous tightness in my pants and I tugged them roughly down, revealing my four inch cock, rock hard from the sight of Toy and Sara, turning dark, mottled pink and black as it rapidly thickened, growing into a wrist thick stump before it stretched and stretched and stretched out past a foot in length, bobbing in the air as I gasped in pleasure, the mushroom tip bumping against Sara's bed as she laughed and said, "Can't handle it though can you?"
I took a moment to collect myself and grinned, "Oh, I can handle it alright."