Simon clicked on the link that said 'Legs'. A large number of options came up, but he had already decided to add muscle to his, now younger than him and gay, brother. He increased the size his brother's muscles in his thighs and calves and, just for fun, he gave him huge glutes.
After checking what other options he had he decided to add vasculatiry to his brothers leg muscles as well as increased density to strengthen him further. He would need the extra strength since Simon planned to grow Adam's body even bigger.
Simon got ready to click the 'apply transformation' button, when...