All women, in Mr. Skin's opinion, begin with an O, as in orgasm. But these celebs are the real deal, in that their surnames start with O and move on from there to these climatic scenes of skin.
Annette O'Toole in Cross My Heart (1987) and you'll hope to die, as in sperms, so play with your tool, boys. Later she shows her o'butt. Oh, my! You may also recall when she stripped to her black panties in Cat People (1982). Meow! And if you're eyes are sharp you'll catch a glimpse of her gash in 48 Hrs. (1982). Renée O'Connor in Xena: Warrior Princess (1995) is a bathing boobie and buttastic. Richard Burton must be drunk as he screams to Tatum O'Neal in Circle of Two (1980) to get dressed as she stands naked showing off her o'boobs. Shauna O'Brien in Friend of the Family (1995) is a friend of anyone who likes to gawk at topless sexy ladies. Shauna O'Brien in Baberellas (2003) has buns of steel that will electrify you. While in Bare Naked Survivor (2001) she poses topless in a thong by the beach. That's call making waves. Keeping with the topless beach scene, she shows off her toplessness in Wild Malibu Weekend! (1994). In Striking Resemblance (1997) we get to see what she's like in bed. Outstanding, and out of her clothing, too. Outtakes from Nancy O'Brien in The Back Lot Murders (2001) as she takes out her tits. Frances O'Connor in Madame Bovary (2000) will have you shouting Madame Oh!
Oh, but there's more. So keep looking....