Gonna have to second Katie Holmes.
IMO, that was the fatal flaw with Wonder Boys. When Katie was in bed wearing only the t-shirt, and just threw herself at Michael Douglas…there’s not a man alive who could’ve resisted that!
Lauren Graham The sex would be great as would the conversations after.
I tend to go for the more obscure celebrities…
Alicia Witt - from “Bongwater,” and “Playing Mona Lisa”
Chyler Leigh - from “Not Another Teen Movie”
Scarlett Johansson - the other chick in “Ghost World” (especially when she’s in her Starbucks uni! Grrrrrr!)
Anna Faris - from “Scary Movie”
But the more mainstream celebrities are…
**Fiona Apple
Christina Aguilera
Avril Lavigne
Winona Ryder
Jennifer Love Hewitt
Rose McGowan
**
But wait, I was supposed to pick just one? Hmmmmm…
I guess I’ll have to go with Alicia Witt. HBO has been showing “Playing Mona Lisa” and “Bongwater” recently, so I’m kinda really digging her at the moment.
Well, I think in all probability, Wilma Flintstone is the most desirable woman that ever lived.
But she’ll never leave Fred, and we know it.
So, another vote for Salma Hayek here. I’m a heterosexual man, but there’s something about Thierry Henry.
Sarah Jessica Parker, especially after seeing this today.
or
Lupan Sansei a.k.a Lupin III…or a similar facsimile there of! Zoom 
adriana lima… so exotic
oh oh and yamila diaz-rahi
but on a regular bump and grind i would have to say charlize theron would have to do it… those other girls might get boring (lose their exotic-ness) after i ram them a couple time 
Hugh Jackman and Matthew McConnaughey with me under the covers while it snows outside in hell.
adriana lima… so exotic
oh oh and yamila diaz-rahi
but on a regular bump and grind i would have to say charlize theron would have to do it… those other girls might get boring (lose their exotic-ness) after i ram them a couple time
Bridget Fonda makes my pants go crazy!
And I don’t know if she counts as a celebrity, but the really cute girl from Survivor: Australia. Her name was Elizabeth or something–I don’t remember. But man she was hot!
Dammit, I want to change my answer! I posted in another thread about actors/actresses and I thought of:
Amanda Peet
Oh my god! She really gets my blood pumping. Ultra-sexy!
Younger woman: Christina Ricci. Especially in Sleepy Hollow
Old Guy: David Bowie about 7 years ago. I know, it is kind of weird considering my age but my sister and I have had this creepy thing for him since we saw the Labyrinth as children.
Older woman: Angelina Jolie. Hot,sexy, and crazy!!!
Younger Guy: The guys who play Lex and Clark on Smallville. Yummy!
Male: Well, if Jim Morrison was still alive, Jim Morrison.
Female: Grace Slick, though not present day. Grace Slick, like, 1960’s, 70’s.
Sorry for the age/death disclaimers. If I had to pick somebody, and I couldn’t make them younger/bring them back to life, then…maybe John Rzeznik [sp?].
Sherilyn Fenn
Male: Robert Downey, Jr. I’d need to see some blood-test results first, though.
Female: Ellen DeGeneres, and I’d have said that before she came out, too.
It’s difficult to narrow the choice down to just one, but I’d have to say yummy, yummy, David Duchovny.
Always loved him, always will.
Jennifer Love Hewitt or Kirsten Dunst. Or both.
Andrea Corr. But I get to pick the music.
Vincent D’Onofrio. He just oozes sex, and his hands and feet are huge.
Not really sure why, but Hank Williams III. His voice is so amazingly awesome, and he’s not real old and he’s really super cute. Plus he’s not very well known so I might have a better chance gettin’ with him than say, Tom Cruise or someone REALLY famous.
Sir Ian McKellen. Yes, I know he’s gay. But he was SO sexy as Magneto in the X-Men movies. drool