Depends on where they're conjoined I'd wager. If they share one torso, then I assume they have one pair of genitals.

Then again the question If they share one torso but have two heads even they have two hearts. Then who would and how would they masturbate.
Hell how would they have sex.

Who will be satisfied more?

And if one head is so damn turned on
But one head is not at all
Would it be rape? Would it get hard!?

Must be a lonely night on Google

Just answer the questions!

And would they have different partners or same..
Do they prefer anal?

I have so many questions!

https://www.theatlantic.com/health/archive/2012/10/the-sex-lives-of-conjoined-twins/264095/
Long story short: They don't know. It completely depends on where they're conjoined but overall twins that have stayed conjoined don't talk about their sex lives much.

No offense but their sex lives probably stays kinky

That's what I think

You just did research on that...

Well apparently she did.

Nah I did research and a little project on this last year for lol's
Watch a documentary called Brittany and Abby, it's great and really interesting