I was going to suggest the sex scene in black swan, but looking at the script i see it's not very dialoguey...

The Dark Knight Rises (http://www.imdb.com/title/tt1345836/) While not explicitly a sex scene, it is suggested at... More of a love scene. https://www.youtube.com/watch?v=d8BcJV83S5c EXT. WAYNE MANOR - EVENING (END OF DAY) Wayne, covering his head with a newspaper, hurries up the driveway in the rain. Steps into the alcove. Hits the bell. MIRANDA (O.S) Nobody’s answering. Wayne turns to find Miranda there. WAYNE No. I’m on my own now. MIRANDA Do you have keys? Wayne looks a little helpless all of a sudden. WAYNE Never needed them... She takes his hand. MIRANDA Let’s find a window. INT. GREAT ROOM, WAYNE MANOR - CONTINUOUS (END OF DAY) They force the French windows - enter, brushing off the rain. MIRANDA Fox worked the board like you’ve never seen - I’m in, Daggett’s out and he’s not happy. Wayne sets down the newspaper: FROM BILLIONAIRE TO BUM81. WAYNE Hope you don’t like me for your money. Miranda kicks off her shoes. Glances at the paper. MIRANDA Suffering builds character. Then at a photo of Wayne’s parents. MIRANDA I’ll take care of your parents’ legacy, Bruce. Miranda picks up a photo of Rachel. MIRANDA Who’s this? Wayne looks at her. Can’t find words... MIRANDA Where’s Alfred? WAYNE He left. Taking everything. Miranda puts the photo down. Kisses him. Passionately. Then again. He kisses back. Suddenly the lights go out. MIRANDA What’s that? WAYNE (sheepish) I think my power’s been shut off. INT. SAME - LATER (NIGHT) Wayne watches as Miranda tends to a roaring fire. WAYNE You’re pretty good at that. MIRANDA When I was a child we had almost nothing. But on the nights we had a fire, we felt very rich indeed. She returns to him, pulling a blanket around both of them. WAYNE I assumed your family was wealthy. MIRANDA Not always. Not when I was young. He traces a scar on her shoulder. MIRANDA An old mistake. WAYNE I’ve made a few myself. She turns to him, tracing the scars across his chest. MIRANDA More than a few... (Smiles.) We could leave. Tonight. Take my plane. Go anywhere we wanted. WAYNE Someday perhaps. Not tonight. She pulls him close. He kisses her. They fold into each other, the warm heart at the center of a vast, cold room. INT. GREAT ROOM, WAYNE MANOR - NIGHT Miranda is sleeping, wrapped in the blanket. Wayne studies her for a moment, then slips out...