"Nervous?" I asked as we headed over to her sister's house.
"God, yes. I'm feel like a virgin about to get fucked. How about you?"
"Me too. Your sister says tonight we will do our thing separately. You and Tom will use the guest bedroom and Janet and I get the master. She said next time all four of us will be in the master."
"Sounds like she has it all planned out."
"She said we would likely be nervous the first time and doing it separately would be easier. You looking forward to having Tom again?" I had to ask.
"Yeah, he was good in bed. That was before we were married, honey. It was just sex then, just like tonight will just be sex."
"Hi, guys. Come on in. Tom is in the kitchen getting drinks and we can visit for bit."
We sipped margaritas and talked about the upcoming playoffs. My mind was elsewhere and eventually the conversation reached an awkward lull.
"Bob, I could tell you were really shocked by our invitation," Janet said. "Tom and I played around back in college. He was one of the guys I regularly bedded. We like the variety of swapping with others."
"Who are they?"
"The latest is a nice couple our age, married right out of high school. Karen and Jim. We socialized frequently, mostly here to watch the games. It all started innocently with a little flirting. Neither had ever had sex with anyone else so swapping was a big adventure for them. Now we get together at least once a month."
"You said you hoped the four of us could also get together."
"I'm a pushover for big cocks."
Susan smiled and took my hand. This was it, time to commit. But now that it was about to happen my thoughts ranged from unbearable jealousy to extreme arousal. Unless I objected my wife was about to be fucked by another guy.
"Have fun," I finally managed to say. Susan squeezed my hand and kissed me on the cheek. Tom took her by the hand, headed to the bedroom. She gave me a last look. "I love you, honey."
"Don't worry, Bob, she will be fine. I'm so looking forward to having your big cock in me. I like to suck cock, that ok?" she asked as we moved to the bed. "Oh, what a nice one! It's even bigger than I guessed."
Minutes later I exploded into her mouth.
"Wow, you really cum a lot. Sorry I couldn't take you all the way, way too big."
"Susan can't either. But you are really talented."
"How soon will you be ready to fuck?"
"I took some Viagra on the way over so I should be ready pretty soon. Anyway, I want to eat your pussy first."
"Oh, yes, I hoped you would. She said you are the best she ever had." Janet bent her legs and spread, opening her bare pussy.
"Your pussy looks just like Susan's!" I noted.
"Eat me, Bob. Eat your wife's sister and see if I also taste the same."
Hesitating no longer I spread her pussy lips apart with my tongue. Sliding up and down with the tip, I flicked up to her clitoris then back down. Finding her vagina, I pushed in, now using both tongue and lips to kiss and probe her already dripping pussy. She tasted better than I could ever have imagined.
"Oh, Bob, damn that feels so good! Keep fucking me with your tongue."
I licked and sucked as her excitement increased. When she seemed close I pushed in two fingers and tonged her clitoris to take her over the top.
"Oh, baby, that's going to make me come. Taste me. Oh.... ". She grabbed my head and mashed my face to her pussy as she lifted her hips in climax, then slumped down in exhaustion.
Now it was my turn and shoved into her from behind. She was so totally wet and open.
"Oh, god, you are big," she gasped as I bottomed. "Oh, yes. Fuck me. Fuck me hard. Fuck me like you fuck my sister."
Her pussy felt snug like my wife's. I settled into a rhythm using the full length of my cock.
"Do you like my pussy, Bob? Which do you prefer, mine or Susan's?"
"I want both," I responded diplomatically. "Two beautiful pussies that fit my cock like gloves. You know this won't be a one-time thing."
"I hope not."
Our bantering ceased as her climax approached. Suddenly she arched her back and her pussy grasped my cock. "Oh baby, oh... fuck me. Go faster, oh... oh...," she implored as she had a second orgasm.
"Janet, get on top and fuck me," as I abruptly pulled out and rolled to her side.
She mounted facing me and positioned my cock at her vagina. We kissed as she lowered herself, my cock reentering her hot pussy. She raised up until only the tip was in and then lowered back down. Each time she would take a little more before she bottomed out.
Now she took control, rocking back and forth, raising up until just my cock head was between her lips, then slamming down. I was content to let her set the pace. She arched her back with sheer pleasure and continued rocking back and forth. My cock was tingling, her pussy was dripping. I cupped her ass cheeks as she slid up and down my slick shaft.
Suddenly she took me deep, grinding her pussy against my groin and climaxed. Seconds later I filled her with cum. She collapsed on me, my cock embedded in her pussy, and we stayed coupled until my cock slipped out.
"Oh my, we were very good together! God, I've never before cum three times," she giggled and kissed me. "Aren't you glad we got together? Oh, we probably should get dressed. They might already be finished."
I had been so distracted that I forgotten about my wife! She and Tom were already up and chatting in the kitchen. I looked at Susan, searching for a clue as to our new status.
She smiled and took my hand. "I'm ready to go, honey."
"Did you have a good time?" I asked as we headed home.
"God, yes! Did you?"
"Oh, yeah. Your sister is hot stuff and really liked my cock. I had last minute qualms when Tom took your hand to go into the bedroom. Were we making a big mistake? Would our marriage ever be the same? Are we ok, Susan?"