“I like to watch”
The scene between Jeff Goldblum and Emma Thompson in The Tall Guy. Pure lust and breakfast and Thompson ends up the toast on her butt.
It starts at 33:22
That gets you in the bits, eh? Interesting…
There is one scene and I cannot remember what movie it was from. A redheaded woman stripped down and got into bed and humped her pillow. This description is lame, but I found the scene to be quite erotic. I hope someone here knows what it’s from because I’d love to see it again and I hoped it lives up to the memory that I have.
I can’t help with the pillow humping scene, but, The Tall Guy? Really? That was sexual comedy, not erotic scenes. Not to me anyway.
I came here to add Unfaithful, but it’s already been mentioned. Those scenes are quite erotic.
Jeremy Irons and Genevieve Bujold in Dead Ringers
Gael Garcia Bernal in La mala educación
Emmanuelle Seigner and Kristin Scott Thomas in Bitter Moon
Yeah, I’m weird.
Have you seen Being There? You seemed confused about the scene in question.
Several times.
Only one person, no nudity, nothing even actually sexual…
But Kaylee eating the strawberry in Firefly.
“I practice safe sex” in The Naked Gun
“I can’t tell you. It’s a secret.” in Airplane!
“Oh! I’m going to miss my bus!” in Erotic Adventures of Candy
The scene between Janet and Frank Furter in Rocky Horror.
I don’t think there’s a better example of pure lust. They won’t let anything get in the way of their pleasure. Yes, it’s supposed to be funny (and, objectively, sex is a very funny process), but beneath it covers all the joys and messiness of a sexual encounter between two people who won’t let anything stop them.
Can’t stand Halle Berry, except when she offered it up with the equally annoying Billy Bob Thornton in The Monster’s Ball.
Sure, there was feeling, there. 
I’ll go get Warren…