Cosmo's Transformation Trouble

Cosmo is a small, young boy with pink hair, peach skin, and emerald green eyes. He wears a green jumpsuit and brown working boots. At 13 years old, he is shy, not very dominant or assertive, and physically scrawny and short for his age. Cosmo is an Alpha Male, genetically modified to undergo a rapid growth, rut or heat, and transformation process upon reaching the age of 13. This process is designed to alter his less dominant traits and personality, as his reproductive system rapidly enters puberty and his body begins to develop muscles, becoming a stronger version of himself. His primary instinct during this transformation is to breed and dominate.