They are tied separately.

You go to Sasha first to check on her in her new position...

She's tied up and elevated in the air, suspended by a combination of your skill and perversity.

She's trying to zone out, which you intend to put a stop to...

"You belong to me," you say, grabbing her left breast, "This isn't a dream. You can't escape it."
Sasha scowls at you.
"I tell you what- Jenni just earned 3 orgasms for the day. You want to give her the first."
Sasha stays silent.
"So rude. Well, let's see if your mood changes after some time with these..."

You attach two metal clamps to her nipples and leave her hanging there.

Going to the Garden, you find where you left Madison.

She's tied to a small fountain with the water running into her 'private areas.' She loved the pool so much, this seemed like a good idea.
You let her suggest it, securing her more as your ****.

You take out her gag to speak to her.

"Is this as fun as you'd hoped, ****," you ask.
"Oh yes, Master. It's amazing. Thank you."
"You're welcome. I know how to make it even better though."
"Do it then, Master. I'm all yours."

You smile and retrieve some fishing line from your pocket.
It is tied around her nipples tightly and then back around to the base of the fountain.

The pain slut loves it!

You tease Madison a bit by having your cock out...but just out of reach.
When you're done, you go back to Sasha...

"Are you ready to lick Jenni now," you ask.
Silence.

You get your answer, so you bring Jenni in to punish Sasha in a new position.
She brings a bound Mallory along with her.

'This position offers up lots of opportunities,' you think...