I heard the front door open, but thought nothing of it.  It was probably Jerry getting back from his trip two days early.  It meant that I would probably have to get out of bed and move to the couch because, if I remembered correctly, Jerry did not like to share a bed.  Since it was his apartment and his bed and he was graciously letting stay with him until I could find a place of my own, moving to the couch was the least I could do.  But I was comfy so I decided to wait and see what happened. 

The first indication that I was mistaken about who had come in came when the bedroom door opened and I got a whiff of expensive perfume.  Then a voice said, "Oh good, Love, I'm glad to see that you are back.  I just put my husband on the 'redeye' for LA and the thought of going home and sleeping alone just depresses the hell out of me."  As she spoke I could hear her moving toward the bed and I also heard the faint hiss of falling fabric and a soft 'plop' as clothes hit the floor.  I know what you are going to say, "Stop miss!  You have the wrong man!"  Am I right?  Sorry to disappoint, but I am an asshole and good card carrying assholes would never do that.  Instead I just lay there silent as a mouse while the lady climbed onto the bed. 

I couldn't wait to meet the woman who had gotten to my brother Jerry.  Jerry, the one voted most likely to become a priest and devote himself to a silent order in a monastery somewhere; Jerry, the guy who gave you a dirty look if you swore in his presence; Jerry, the penultimate Eagle Scout - having a dalliance with a married woman?  I just could not believe that six months in the city could have changed him that much.  This just had to be a dream!  But the warm body that curled up next to me was real, as was the hand that reached over my leg and came to rest on my rapidly hardening dick.  "Oh my" said a soft feminine voice, "I guess you are glad to see me."  I rolled onto my back and she immediately raised herself over me and lowered herself onto my cock.

When it was over, for the second time, she said to me, "Harold will be back tomorrow night and he wants to know if we can get it on for him."  Now I found that to be an intriguing question.  To me, with my perverted mind, she was asking me to fuck her while her husband watched.  My oh my, what had my brother gotten himself into.  If what I was thinking was right, there had been some major changes in Jerry.  Jerry and I are identical twins, but those who know us can tell us apart very easily.  We may look alike, but the similarity ends there.  Jerry is a reserved, quiet guy with a very dry sense of humor and a studious nature - he never had anything smaller than an A minus from kindergarten through college.  I am the complete opposite; loud, boisterous, outgoing, fun loving and I struggled every year just to pass to the next grade.  My mother has always maintained the even though Jerry and I look alike, a mistake must have made at the hospital - I just had to be someone else's kid.  All my father ever said was, "Jack - will you please stop upsetting your mother." 

So when straight arrow Jerry went off to the big city to seek fame and fortune the last thing anyone would have expected would be for him to become involved with a married lady, let alone a married lady and her husband.  And yet here he was (okay, technically speaking not him, but you know what I mean) with another man's wife discussing - what?  I figured I'd better clarify things so I asked, "What does he want us to do?"  She gave me a funny look and said, "The usual.  He just wants to watch you fuck me.  Why did you ask that question?"  Oops, I thought, need to cover up here, "I mean doesn't he ever want something different?"  She laughed, "Sweetie, you know what he wants and I still for the life of me don't know why you won't do it.  Hell, I want you to fuck my ass as much as he wants to watch you do it."  So Jerry did have some limits after all.  I'd have to do something about that.  "Well tonight is your lucky night my dear" and I rolled her over onto her stomach.  She squealed with delight, got up on her knees and wiggled her pretty ass at me.

Later, after she had fallen asleep, I got out of bed and found her purse.  I found her driver's license, her name was Linda, and I wrote down her address.  Hey, if I was going to fuck her while her husband watched I needed to know where she lived and I couldn't very well ask her, could I?  When I awoke the next morning Linda was gone, but she had left a note saying that she would call me as soon as Harold got home.  I hoped it would be soon because Linda was great in the sack and I wanted another shot at her before Jerry got home and put an end to my little adventure.

 I spent the day going to job interviews and looking for an apartment.  I also took the time to find Linda's place.  I no sooner was in the door at Jerry's place when the phone rang; it was Linda, and she told me she would be right over and she hung up before I could say anything.  Fifteen minutes later she came in the front door and started shedding her clothes:

 "Harold called from the airport and he's going to meet us here.  We have time for one good romp before he gets here" and she took me by the hand and led me to the bedroom.  I was balls deep in Linda's ass when we heard the front door open and close.  Linda grunted, "He's here.  Don't cum in me yet.  Wait until he sees you fucking my ass." 

I slowed my strokes and Linda got vocal for her hubby, "Oh God yes.  That feels so good, fuck my ass baby, fuck my ass."

 A voice from behind us said, "Well well, I see you've met Jack."

 I looked over my shoulder to see Jerry stand there - home a day early.  Linda stiffened and turned her head.  At the sight of Jerry she got a stunned look on her face and started to pull away from me, but I grabbed her hips and held her in place; I was too close to getting off to stop now.  I started pumping faster and harder and Linda stopped trying to pull away and instead started pushing her ass back at me.

 "Oh God" she moaned, "Don't stop, don't stop, fuck my ass, fuck my ass" and I did.  Jerry had walked over to the side of the bed and was standing there watching.

 "I always wondered what Harold got out of seeing you fucked and now I think I understand.  If it gets his dick as hard as watching you two has gotten mine, I understand only too well."

 Linda moaned "If you've got a hard dick I want it.  Get over here, I want you both." 

On the word 'both' I erupted in Linda's ass and held her to me while I drained into her.  Jerry had undressed and had presented his dick to Linda's mouth and she had started to suck it.  I pulled out of her and went into the bathroom to wash the shit off my dick and when I came back out Jerry was on his back and Linda was sliding up and down on his cock.  I watched for a minute or two, asking myself "Is this really my brother - Mr. Straight Arrow?"  Maybe we had more in common than I thought.  I walked over and guided Linda's mouth to my cock and she started to suck it greedily.  And that’s where we were when Harold walked in.  The look on his face was priceless.  And he did get to watch Linda being fucked in her ass.  In fact, over the next several months he got to watch it a lot.