Bitch doesn't offend me but it's not a sexy word. An ex tried using it while getting saucy once and I couldn't stop laughing which was not the reaction he wanted.
Words I like the sound of but not necessarily the meaning are serendipity, carafe, Kofferkuli (German for luggage trolley) and Каранда́ш (Karandash, Russian for pencil).
Hmm, I seem to like a hard k sound at the start and an r in the middle, I wonder if that's were my Karen Carpenter obsession started.