My now ex-wife was a natural redhead too. Enjoyed plenty of extra cock too. When she started cuckolding me her pubic hair was wild as shown her, but later it became my job to shave her before dates or "just in case". She never said but I reckon a young lad she went with, being more used to girls his own age, had commented adversely about her wild, tangled pubes so she decided to have a shaved pussy.
Ironically, years later, when she finally gave an ex-work colleague of mine what he'd been after from the first time he'd seen her in our work's social club, he was disappointed that she was shaved as he'd fantasised about her ginger cunt for years. Just shows you can't please everyone, although he did fuck her on and off for 2/3 years until he moved away.
Peter C