Not as a provider, but something I used to say as a civvie was: "He wants to do the cha cha cha."

Nah...good ol' 'Fuck me" works for me. It's all in the tone of course.

Rosemary Cross: Do you think we're going to have sex?
Max Fischer: That's a kinda cheap way to put it.
Rosemary Cross: Not if you've ever fucked before, it isn't.

some terms

Make the beast with two backs
Bump uglies
Hump
Screw
Do the deed
Make sweet music together
Hook up
...and many more I'm sure

Getting the nookie :)

That's my fave
Hugs and kisses
TL

I couldn't ever see anybody ever saying that with a straight face. Even in the Dark Ages.

Some of the very soft expressions, simply, "retire to the bedroom," or "Would you like to play?" Always work because they're so understated that they pass unnoticed.

I really like it when the dynamics can transition into it with NOTHING being said.

Call me a closet Methodist if you want, but somehow I still find it gross asking, "Do you wanna fuck now?" It doesn't really add to the magic. Seems to clash with the mood music and the candlelit ambiance.

On the other hand, expressions like, "You're making me uncomfortable in my tight boxers," or, "Do you like being naked?" Those seem to bring things into a comfortable but heightened energy. "Explore your body," is comfortable too, but slants the moment into a slightly one-sided perspective. Sometimes women find that attractive, and it's sometimes fun to have a very selfish session where you drop the thing of giving her any pleasure aside from the envelope.

If you go to the internet and look up synoyms for the word, you'll find plenty to read.

Here's the UD's take on it....

She said, Hey baby! Want some luvvin for you nubbin?
She thought different when it swelled up and she began gagging on it.
Ohhh what fond memories when your young, dumb and full of cum..lmao

Pk

Dunk the junk.

Did you get Slammed...

in polite conversation this may have been called "THE HORIZONTAL TANGO".  Among my buddies we may have referred to a girl as "HAVING ROUND HEELS".
 Here is a bunch great favorites from Grumpy Old Men:

Mattress polo.

A soft whisper..."Come Mere"

Get's me every time!!!!!

playing hide the sausage

laying pipe ( I used to be a pipefitter so I found that one hilarous)

rubbing fuzzies

swapping dn

Can I dangle in your participles?

Stolen from Robin Williams, but usually evoke amusement:
Sink the sub
Hide the weasel
Park the porpoise
Horizontal Mamb

"Crossing enemy lines"