Luckily for those of us who actually do what you're being hypothetical about, not every young lady is as easily offended as you are and we've been quite successful. Frankly, chances are you give off an air of friendly-yet-firm that suggests no one who doesn't already know you should ask you to do anything ever, so fortunately it's not something you'd have to deal with very often
🙂 As for Viper enjoying the shoot, he's a red-blooded male, it'd be creepy if he
didn't enjoy filming lovely young ladies even for non-fetish shoots...nowhere is it written that a photographer can't be turned on by his subjects so long as he remains professional.
Virtually every stranger that I've asked to work for me has asked to see my site, that's why I ended up putting the URL on my business cards