(I--as in me, Amy--don't like to use commercial photos, I like to use the authors' descriptions and my imagination.)
Book: Visions of Heat by Nalini Singh
"You can touch." His voice was a purr that rolled over her like the softest, most sensual stroke of living fur. "I've touched you--this is your chance to get even."
"I'm a cat. Soft silky things make me purr." He nipped at the vulnerable skin of her thigh and smiled at her shudder. "Sometimes, though, they make me want to bite." [...]