The anime Aifureta Shokugyou presents a transformation where an average teenage boy gets a hunk treatment. His body gets all toned and he gains a hoarser voice too implying he has slightly matured.
The transformation happens in 14:49
https://animeflv.net/ver/52350/arifu...ekai-saikyou-1
https://drive.google.com/file/d/1nXS...ew?usp=sharing here's the isolated clip although it has to be mute for hardware reasons. This surely opens the posibility for seeing more of the girls later on.