When I got home last Friday, I found my girlfriend in a funny mood. Iva seemed a little nervous and a whole lot giggly. I could tell she was gearing up to tell me something, but I was exhausted after a long business trip, so I wasn’t as attentive as usual.

But after a long while, she could no longer hold in her secret and told me, “I made us an appointment for tomorrow.”

I’ll admit I was only half paying attention to her as I leafed through the mail.

“Where?” I asked, figuring she might have made us a reservation at her favorite restaurant or maybe set us up for massages at the spa.

“With Theresa,” she said shyly.

That got my attention in a big way, and I set the mail down.

Theresa is my ex, you see. I’d written to Penthouse Letters not long ago to describe the first time Iva and I had paid her a visit in her professional capacity as a dominant-for-hire. It had been a hot session for both of us, but I knew Iva had left a little unsatisfied. So I wasn’t entirely surprised to hear that she wanted a second helping of my former flame’s unique skills. But I was a bit startled to see her take such initiative, to the point of actually booking us an appointment. Iva tends to be timid. Then again, people can change.

“Are you upset?” she asked, observing me carefully. “If you’d rather not do it, I understand. I can cancel.”

“Don’t you dare,” I said, taking her in my arms. “I think it’s a great idea. Believe me, Theresa doesn’t accept appointments with just anyone. If she agreed to see us a second time, she must have really liked you.”

Iva blushed as she confessed, “I liked her, too. I couldn’t stop thinking about that night. That’s why I’ve wanted to go back.”

“Me, too,” I admitted.

“I did something…for Theresa,” Iva said softly. She took my hand and guided it under her short robe, encouraging me to feel the honeyed place between her legs. Iva had shaved her plump pussy, leaving it completely hairless. The idea that she would do that for another woman — let alone a dominatrix; let alone my ex — got me as hot as hell.

So, we settled down to some serious lovemaking to take the edge off our mutual excitement. My cock was rock-hard in no time flat, and I pumped my erection in and out of her overflowing pussy until we both experienced explosive orgasms. Amid our gasps and cries, I couldn’t help wondering what Theresa would have in store for us.

Iva had set up our appointment at Chez Theresa for seven the next evening, so it was a mere 24 hours away. Still, the time passed with agonizing slowness, and we were both bursting at the seams with anticipation.

Theresa met us at her front door, looking as lovely as ever. With her black bangs and slinky slip dress, she looked like some wicked vamp from the Roaring Twenties. She greeted me with a kiss on my cheek, but I noticed Iva got a prolonged hug.

“All right,” Theresa said, finally breaking away from my gleeful girlfriend. “You both need to strip again. But this time, you’ll do it separately. Iva, use the same changing room as you did during your last visit. As for you,” she added, turning to me, “go to the bathroom. But stay there until you’re summoned. There should be time for you to take a shower if you’d like. All right?”

We both nodded. Iva looked nervous at the prospect of being separated from me, but I gave her hand a reassuring squeeze before I went off to the indicated room. Once I’d stripped, I took Theresa’s suggestion and showered. After all, I had no idea how long I’d be waiting. I turned the water up as hot as it would go and lathered myself briskly before rinsing. By the time I’d dried off, I heard a bell above the door chime — Theresa’s signal that she was ready for me. The shower had left my skin reddish and tingling, and my balls were achingly tight.

I left the bathroom to find much of the residence in darkness. But the lights were on in the suite of rooms to my left, which I recognized as the part of the townhouse where Theresa kept her serious equipment. I walked in and was startled to see Iva naked and shackled. She was spread-eagle on a platform that hung from chains attached to the ceiling, a floating table of sorts. Theresa had removed her dress and was clad in a black lace bra and panties. She’d put on elbow-length black leather gloves and a rhinestone choker. She was casually massaging Iva’s pretty pussy, which was gleaming wet. My girlfriend was squirming and gasping as she was being mercilessly teased. She was muttering softly. Knowing her as I did, she was likely begging Theresa to put a finger or two in her. But Theresa wasn’t even looking at her. She was smiling at me in a look-what-I’ve-got sort of way. I’ll admit the whole scene was impossibly sexy to me.

“Remember the last time we were all together? I told you to take some time to enjoy each other,” she said with authority. “I wanted you to realize what you already had, so if you came back to me, you’d be properly ready to share. And you have come back, so I suppose it worked. Come here, and eat her out,” she told me.

The sudden order took me aback, but I was more than willing to obey. I went to the edge of the table, and Iva looked at me with a deliriously happy smile. Theresa had really done a number on her. Her clit was already puffy, and her pussy lips were already glistening with her arousal.

“Go on,” Theresa said, sounding displeased by my dawdling. Her gloved hand landed solidly on my buttocks with a loud slap. I rested my hands on either side of the platform, holding it still, while I moved my face toward Iva’s fragrant cunt. She whimpered as I deployed my tongue, lapping gently at her folds.

“That’s right,” Theresa purred softly and sensually. “Such a good little Ivy.”

That startled me. “Ivy” was a pet name I hadn’t used for Iva since our dating days. I wondered if she’d told Theresa she liked being called that, or if it was simply a guess on our mistress’s part. I put the thought aside, however, and focused on my pussy-eating. Iva’s cunt was incredibly wet, and she was vibrating with pre-orgasmic tremors. I knew those shivers would get even more intense as I continued tongue-washing her.

“Feet apart,” Theresa said to me suddenly.

I obeyed, then I felt Theresa’s hand on my nuts. She’d taken off her gloves, and her fingers were warm and damp. She tugged at my balls, almost as though she were milking a cow. The sensation felt good, but her long nails scratched lightly against my junk, a very subtle threat amidst all that overwhelming pleasure.

Her actions made it a challenge to keep my tongue on target, but Theresa didn’t let up. She shifted her attention to my stiffening dick, pulling it downward and maneuvering a cold metal ring onto my shaft. She pushed it down to the base of my stiffening tool, and her nails grazed my balls. I squirmed as I continued eating Iva’s pussy. I knew the snug cockring would keep my dick hard for longer — for whatever wicked fun Theresa had planned.

“Now you’re mine,” she told me. “I already gave our adorable Ivy a little token of my ownership.”

That’s when I looked up and noticed a slim black ribbon around my girlfriend’s neck. Theresa was fond of establishing ownership of her subs, but only those she favored most. There was something oddly thrilling about hearing her say that we both belonged to her, even if only for the time we spent in her dungeon.

“Get on top of her,” Theresa demanded. Sensing my worry about the suspended platform, she added, “Trust me. It’s safe.”

I climbed up onto Iva and positioned myself between her outspread legs. The platform swung back and forth under our combined weight.

“Fuck her,” she said. “Good and hard.”

I gave Iva a slight shrug as if to say, “You heard the boss.”

I positioned my fat dickhead at her pussy’s cleft, then plunged home.

I pounded Iva, and she moaned and hissed. Pretty soon we were going at it hot and heavy. But I was surprised when I felt Theresa at my back. She’d positioned herself behind me, and I groaned as she spread my ass cheeks and worked a lubed-up, strap-on dildo into my butt.

I didn’t resist her. I kept thrusting into Iva, and Theresa kept thrusting into me. I felt her hands — once again wearing her gloves — squeezing my shoulders. I’ve never been much into anal play, but the sensation of being penetrated — combined with my dick reaming my girl — felt incredible. The table swung madly back and forth as we fucked.

With all of that, it didn’t take long before I burst inside Iva’s pussy.

“Don’t worry about it,” Theresa whispered in my ear. “We’re not done yet. Undo those shackles on your lady. Then she can switch with me.”

Iva made a little questioning noise, and Theresa added, “I mean change places. I won’t be tied up, but I think it’s time you learned to fuck this gentleman where it’ll do him the most good.”

We followed her orders to the letter. I sank my slippery cock into Theresa’s hot cunt, while my little Iva plowed my backdoor. It was an incredibly satisfying adventure.