I first met Ellie several months after moving in with her identical twin sister, Maria.

Identical apart from Ellie had a small birthmark on her left cheek and a blonde streak in her hair. The twins were 24 years old, 5 feet 3 inches, slim, and had gorgeous tits and beautiful, well-rounded asses. They even sounded the same.

Even though Ellie and Maria spoke or messaged almost every day, I’d only met Ellie a few times. We lived in the same city, but on opposite sides. We’d gone out for meals as a foursome with Ellie’s partner Zac, and the four of us seemed to get on very well.

Sometime or other we’d decided that it would be fun for the four of us to rent a condo for a short break on the beach.

Unfortunately, when the time came, Ellie had ditched Zac a couple of weeks previously. He’d cheated on her. Maria managed to persuade her still to come with us to enjoy the break and to get over her problems.

I woke up early and nudged Maria, lying next to me. She grunted, mumbled something and carried on sleeping. I put on my boxers and went through to the kitchen and onto the balcony, admiring the view of the sea, the waves and the sand. I heard a noise behind me and turned around.

Ellie was there and said, “Hello, big-boy. I see Mr. Stiffy is awake.”

I looked down to see that my erection was making a tent in my shorts. I tried quickly to cover myself, but there was still a bulge. She came toward me, went straight down on her knees, pushed my hands away, and pulled down my boxers. She grabbed at my buttocks and pulled me toward her, taking most of my cock in her mouth before I could protest. I tried to push her away. I was shocked, but only half-heartedly protested.

I whispered, “No, no you mustn’t, Maria will find us.”

She shook her head but couldn’t reply with a mouth full. Rather than continuing to try to stop her, I relented, grabbed the back of her head and fucked her mouth.

She licked me with her tongue round and round the bellend and in and out of her hot mouth. She sucked so well. She was good. I didn’t last long before I shot my load a couple of times. She swallowed it all and withdrew me from her lips.

“Thank you very much, Mark. I needed that. Now for some coffee. Do you want some?”

I was speechless. All this had happened in a couple of minutes. I couldn’t believe what she had just done to me. It was totally unexpected and totally wrong, but it was too late to complain. As if …

She made the coffee, and we sat on the balcony and chatted as though nothing had happened. She was wearing a short gown and a big grin. There was some white around her lips, froth from the coffee or perhaps from me.

Mr. Stiffy, Maria’s nickname for my erection, was now Mr. Softy (as she called me when it went flaccid). Mr Stiffy was forever hard when I woke up. Usually, Maria took care of it, or else one of my hands sorted it out. This time it was her twin sister - for the first time!

Soon, Maria joined us for a drink and for breakfast, and we talked about plans for the day. Beach, shops (for food and alcohol), more beach and exploring the resort. We certainly didn’t talk about my surprise, secret blowjob! I couldn’t get it out of my mind, though. Talk about a lovely wake-up.

The next morning, I got up early again. On my way down the passage, I passed the shared bathroom. Was the door half open deliberately? I saw Ellie naked and about to step into the shower. Her back was to me, and I watched her lovely round ass moving. I stared at her, although I’d seen her twin sister in the nude many times; this was still a beautiful, identical sight.

She turned and saw me looking. She turned to face me. Her hand was between her legs. She took her hand away up towards her mouth, licked her fingers, and offered them to me. She beckoned me in and motioned me to lock the door. I hesitated but did so. I went in and turned the catch. I knew it was wrong, but Mr. Stiffy was with me again. I shouldn’t be doing this.

I dropped my boxers and joined her in the shower. It wasn’t turned on, unlike me. My hands felt her body, her ass and her pussy whilst she took hold of my cock. She was side-on to me so I could touch her pussy with one hand and her ass cheeks with the other. She had a thin landing strip of pubic hair, unlike Maria, who was completely shaved. My palm rubbed it whilst my fingers touched her pussy lips.

“Mmmm. That’s good. Keep going.”

I also saw that Ellie had nipple bars, and I sucked on one and made her utter a slight scream. My other fingers explored her ass at the same time. I rubbed both front and back and felt her juices, so I slipped one then two fingers into her pussy and another into her sphincter.

“Oh wow!” she said softly.

She squirmed and stroked me in time with the rhythm of my fingers. She put her hand to her mouth, spat on it and used it to gently stroke Mr. Stiffy, making him even harder. I remembered yesterday’s blowjob and groaned with pleasure.

We were both making soft moaning noises when there was a knock on the bathroom door just as I was almost coming.

“Ellie, are you in there? I desperately need a pee. Can I come in, please?” It was Maria.

“Yeah. Just coming.” Ellie looked at me and grinned when she said it.

We both stopped our groping as I looked around for somewhere to hide. Fortunately, the shower was a wet room so it had a solid wall I could hide behind. I grabbed my shorts and stood very, very still, hidden and breathing silently.

Ellie unlocked the door, and Maria came running in to sit on the toilet. I could hear her pissing.

Ellie came back to stand in the shower sideways on in front of me.

Maria said, “I could hear you moaning just now. Were you doing what I think you were doing?”

“I might have been,” said Ellie with a smile.

Maria continued, “You never stop playing with yourself, do you? You were always masturbating. Just like when we were in college. Do you remember when the four of us cheerleaders, you, me, Zoe, and Jenny, had a group masturbation session in the changing room in front of some of the basketball team? They were looking at us in particular, comparing our two bodies and especially our pussies to see if we were identical down there. We admired their cocks too. Do you remember Big John?”

“How could I forget?” said Ellie. “He was well-hung although the others weren’t exactly weenies, were they? It was fun watching them wanking themselves at the same time. I think we all came more-or-less together. That was very naughty watching them shoot off onto the floor. Great fun, wasn’t it? Anyway, now I am back to sorting myself out as I haven’t got anyone else to help me.”

My mouth was wide open in disbelief at what I was hearing. I was slowly stroking Mr. Stiffy. Ellie was obviously enjoying the teasing conversation as I listened and admired the view. I could see from the side that her nipples were pointed hard. The bars were erect. She was gently stroking her left breast and then her ass cheek. Her other hand was stroking her pubic hair, teasing me and making Mr. Stiffy ache. What a woman.

“True,” Maria said, “did you ever sample those goods?”

“Of course, did you?” said Ellie.

“A couple of times,” Maria replied.

Knowing I was there and knowing that she’d seen Mr. Stiffy, Ellie asked, “How does Mr. Stiffy compare with Big John?”

“Quite favorably, you know,” said Maria.

“No, I don’t know,” Ellie lied, “but I wish I did. Do you think I could see it in the flesh sometime?”

“Wishful thinking, Ellie,” laughed Maria.

All this time I was stroking my cock. Ellie’s hand was hidden behind the wall, so she moved it toward my cock and gently touched the end. It was sticky with precum. I was aching with pleasure. I had to bite my knuckle to stop myself making any noise and to stop myself shooting a load onto the shower floor or even onto Ellie.

Ellie said, “No, I’m serious. I’d love to see it and watch you playing with it. Remember, I’ve been without a real cock for a few weeks now. It would be lovely if I could be in the same room whilst you were doing things with him. I’d sit in the corner and sort myself out at the same time. I wouldn’t say anything. I promise. I’m sure Mark would enjoy the view.”

Maria giggled, “I don’t know. I’d have to check it’s okay with him. Anyway, can I take a shower now, please?”

I froze. If she did, she’d discover me without any explanation!

“No, you can’t just yet. I need a dump before I have my shower, so you’ll have to wait, if you don’t mind.” Brilliant, spontaneous thinking by Ellie.

“Okay,” said Maria, “let me know when you’re done. Have you seen Mark, by the way?”

Ellie lied, “I think he was on his way to take a look at the ocean when I came in.”

“Thanks, I’ll go find him. Let me know when you’re through.” With that, Maria went out.

I was sweating profusely. I gave Ellie a swift kiss and a ‘thank you’. She gave Mr. Stiffy a quick tug as I went out into the hallway with my boxers in my hand. I saw Maria disappearing to my right as I turned left to our bedroom.

When Maria came back to our bedroom, she asked where I’d been. I told her that I’d been to look at the beach and, when I came back, I heard her talking with Ellie in the bathroom, so I came back to bed. Phew. A plausible story which she took in. That was a very close thing. Then she spotted Mr. Stiffy.

“I’d better sort him out,” looking at Mr Stiffy, she said as a second female hand of the day touched me. This time it finished me off. It didn’t take long!

The rest of the day and evening went fine until we were in bed. Maria raised the subject of our being watched by Ellie and how she wanted to see Mr. Stiffy and to touch herself whilst we had sex.

I feigned surprise and said, “Wow! Does she want to join in? It would be so much fun and so sexy. But I’m sure that’s just wishful thinking on my part. If you’re sure she only wants to watch, that’s okay with me. I’m game.”

The dirty talk caused Mr. Stiffy to rise again as she described what could happen. I’d get to see Ellie’s pussy again and watch her masturbate. Maria was seriously agreeable and said that she’d make the arrangements. Then she went down on me and gave me another beautiful blow whilst I remembered the bathroom incident and the morning balcony.

We drifted off to sleep. I had a big smile on my face as I remembered how the day had been and imagined what was to come.

The next day, we spent doing the usual vacation things, including taking in the sun and swimming both in the sea and the communal pool. There were two gorgeous bikini-clad girls, one on either side of me. Mr. Stiffy was straining in my shorts. Then, over dinner, Maria suddenly announced that Ellie was going to join us and watch us when we were doing naughty things. I nearly choked as I was taking a mouthful of wine. Ellie smiled and thanked us both, saying that she wouldn’t be a nuisance, but she’d heard so much about Mr. Stiffy and needed to check him out.

After we’d eaten, drunk far too much and talked about our sex histories, we went to bed.

“See you soon,” said Ellie with a wink.

We were naked on top of the covers when there was a knock on the door and in walked Ellie wearing a short nightshirt and what can only be described as a very tiny white lace thong. She sat down on the chair we’d positioned next to the bed.

“I see you’ve started without me,” she said.

Maria nodded but couldn’t say anything as she was gagging on Mr. Stiffy.

“Well. That’s what Mr. Stiffy looks like,” she said with a big grin and a wink to me.

“You’re a very lucky girl, Maria,” Ellie whispered as she started to stroke her lacy thong, making sure I could see her. She slipped her hand inside, and I could see that her fingers were playing with her clit and occasionally moving inside her pussy. All the time, Maria was sucking away.

“Can I see all of Mr. Stiffy, please?” Ellie asked.

Maria released me from her mouth and replaced it with her hands, stroking me gently up and down.

“Wow. Now that’s what I call a hard cock, lucky girl. No wonder you call him Mr Stiffy,” Ellie said.

“Can I see your pussy, then?” I asked.

We were both looking at our audience who, by now, had taken off all her clothes and placed her legs on the arms of the chair, opening herself for us to see. She was glistening with her juices, and so were her fingers.

“Which pussy do you think looks best? With or without hair?” asked Maria.

“They’re both beautiful,” I muttered as I felt my precum seeping from my cock.

“Let’s put you in Miss Pussy, shall we?” Then Maria climbed onto me and my engorged cock slowly until it was all the way in.

I looked over to Ellie, who by now had a dildo stroking her clit and around her entrance. She was also pulling on her nipple bars. She managed to keep her eyes open as she could see where my cock was.

Maria said, “Are you enjoying this, Sis?

“Are you nearly coming just like me?

“You like watching people fuck, don’t you?

“Just like we used to.

“Put that artificial cock inside you and pretend it’s Mr. Stiffy.

“Let’s see if we can all come at the same time.”

I could feel Maria’s pussy juices on my cock and could see Ellie’s wet dildo frantically moving in her pussy. The sound as she fucked herself was amazing.

I couldn’t hold back as Maria increased her rhythm. Soon I heard both girls moaning as they came. I pumped my semen into Maria several times until I was empty.

The room was silent apart from the sound of us all breathing and the dildo still humming in Ellie.

“Thank you. That was wonderful. Good night, Sis. Good night, Mr. Softy,” said Ellie with a waving kiss and smiling at me.

Maria and I said how good it was and agreed about trying it again sometime.

Erotic thoughts were floating around in my dreams. My secret blowjob from Ellie, the shower encounter, watching Ellie masturbate, and hands under the covers, stroking my cock. It felt good.

Eh? Hands under the covers stroking Mr Stiffy? I don’t recall that, but then I realised that it wasn’t a dream. I opened my eyes and saw Ellie, in the dimness, kneeling next to my side of the bed.

I heard Maria breathing softly behind me.

“What are you doing?!” I whispered.

“That’s a silly question,” Ellie whispered quietly back. “What does it feel like?”

“Stop it. You mustn’t. You can’t,” I whispered.

“Mr Stiffy says I can, doesn’t he?” She said slowly as I twitched.

 “Here, open your mouth and taste this,” as she put two fingers in. They were wet and had the aroma and salty taste of pussy.

“Mmmm,” I moaned, “but you must stop. Maria might wake up.”

“There’s more where that came from. I need you to fuck me. My juicy, wet, hot cunt is here waiting for you to fuck,” she said in a very soft and sexy voice.

Hearing the ‘C’ word, ‘cunt,’ especially from a woman, always turned me on. I’d never heard Maria use that word. She’d always say ‘pussy’ or ‘Miss Pussy’ or ‘vagina’ or ‘slit’ or ‘kitty’ or something like that. Never ‘cunt.’

“Have you been thinking about my juicy cunt around Mr Stiffy?” Ellie whispered.

I twitched as she continued to stroke me. Continued with her fingers fresh with juice from her cunt. Yes, I wanted her cunt! I wanted her juicy cunt, her hot cunt! I wanted her cunt now! Badly!

She whispered, “Come down on the floor and put Mr. Stiffy in me. Into my cunt. I want you to fuck me. Fuck my cunt, please.”

My resistance was no more. My cock-brain had taken over. I couldn’t risk waking Maria, so I slid silently and slowly out of bed. I could just make out Ellie on her back with her legs apart. She took hold of me and guided me into her, into her hot cunt, her wet, silky cunt. It was heaven. When I was fully in, I tried to keep still, savoring the moment. Then we started gently and quietly to rock, just for a few minutes. Ellie was moaning softly but then let out a louder “Fuck!” I shushed her and put my hand over her mouth. We stopped and started again when we thought it was safe to do so. What bliss I felt in her hot juices.

But then a noise came from the bed. “Eh?” muttered Maria.

We froze, at least most of me did. Mr. Stiffy had other ideas. Ellie clenched her cunt tightly around me as I throbbed into her wetness. Into her juices.

I throbbed again.

I throbbed for a third time into her cunt.

I held my breath for as long as I could to keep silent. And so did the woman beneath me...