Tony shuddered visibly as her tongue ran over him, letting out a low rumble deep in his chest. He took a slow, deep breath and tried to get his thoughts together. He definitely wanted to teach her the right way to do it, mainly so he didn't end up with teeth marks where he didn't want them.
"Best to um.....start with the licking. Kind of like a lollipop." He cleared his throat. "Then you want to....to cover your teeth with your lips. And just...." He took another, slow deep breath, trying to get his brain to function but there wasn't enough blood flowing in that direction at the moment. "Just um....as much as you can. Doesn't have to be all of it. Even just the tip...." He bit his lip.