Robert clamped his jaw shut in orgasm when the changes started.
A shudder runs through Robert as the feeling of power courses through his body. The sensation was absolutely intoxicating and he let out a house shaking roar as he came in Mary. He gained a tremendous influx of power and growth as he absorbed the power of the pills into his body. Roberts already body-builder like frame grew larger and even bulkier. Muscles growing over muscles as they tried to overtake each other in a race for room, his bones elongated and became denser to try and make additional room for the swelling muscles. The horns on his head and body grew sharper and longer as his draconic face changed in shape, becoming more masculine and strong. His biceps bulged with power, reaching roughly the size of medicine balls and the pectoral muscles quickly added another row to his well-defined abs. All over Robert grew in power and size, and the kitchen began to strain itself. Now roughly 24 feet and more muscle than humanly possible, the walls of the kitchen began to creak and groan as his body pushes against them.
Robert felt a tingle run through his groin and he craned his neck to look down at it. Robert raised a brow as he see the base of your genitals, the massive shaft now started to pulse and swell larger and girthier. It stopped when Mary cried out in pain as you realised that she was still mounted on you. You pulled Mary off of you so that she could watch the rest of your changes occur.
Inspecting the immense dong you estimate that it was now roughly 4-5 feet long, and your hefty scrotum around the size of basketballs. You groaned deeply as you stroked your shaft,looking around ready again to take someone.