Hermione was practices a genderbend spell/curse while thinking about using it on Lavender, to get her to stop worrying about her looks and mark up.
But as Hermione looks at the tell man before her she discover she has a weakness to sexy blond studs.
Hermione's knees felt weak. A 'Stud wizard' wasn't really a thing, most wizards and witches would turn their nose up at anything truly physically demanding, Quidditch was the only one and even that by a small portion of the population.
So seeing what the spell did to Lavender was... so handsome.
Lavender as a man was nearly 7 feet tall, her cock hung around below knees.
Lavender seeing Hermione looking at her new body and cock smirks, "Hey Hermione... This is a cool spell but I think we need to test it." Her cock rose as Hermione's knees gave out. "Lots of hard...rigorous…..testing."
Hermione whimpered and nodded as Lavender’s cock was pointed right at her face and was slowly moving closer as Lavender moved in.