Hot sister-in-law-loves sex!

I recently went over to my sister-in-laws house to help her move some furniture and things. Now,she has been divorced for over twenty years,doesn't date,and is still,hot looking. She is 67years old, 5'2",115lbs,nice,36b tits,and a great,round,full ass. I'm 47years old,6'3",210lbs,athletic build,with an 8"inch cock. I've been married to her sister for 18years,and our sex life,is about dead. Over the years,we have casually flirted with each other,and I have "accidently",walked in on her while she was undressing,or in the shower. She has never seemed to mind that I did that,or mentioned it to her sister.

 On this day, she was home alone,my wife was at work, and my kids in school. After we got done moving the furniture and things,she said she was going to take a shower,and make me some lunch.I said"Can I scrub your back for you?",With a sly smile,she said"You might get in trouble,doing that!""I'll be out in a few minutes stud". As she went into the shower,I thought about her hot body,and wondered if I should act upon my fantasy,instead of just jacking off to it,like I usually do. Dressed in my shorts,and t-shirt,I knew my cock would start to grow,thinking of her,which it did. I've never cheated before, but I was so horny,I knew I'd do something.

I was in the kitchen,stroking my cock, under the table,when she came in,dressed in her usaul t-shirt,no bra,and panties on.With those tits swaying,and seeing that ass when she lifted her arm up to get a can out of the cupboard,my cock was rock hard.As we sat, eating lunch,making small talk,she asked"So hows married life with my sister?"I said"Its great if you don't expect alot of sex!"She asked"Are you having problems?" I said"No,the normal stuff,I just take care of the sex part myself,if you know what I mean".She looked at me and said"Well,I haven't had any in 20 years,I forget what its like".With that,she started putting the dishes in the sink,and began to wash them. With her back to me,I stroked my cock again,and it was hard in seconds.

Making more small talk,I went for it! I went up behind her,giving her a tight hug.My cock was rock hard. I stuck my hands up her shirt,and grabbed those huge tits. She said" What are you doing?" You can't do this,its wrong,and you know it!" I said" I've been wanting to grab those tits,and stick my cock in you for so long,I can't wait anymore!" I grinded my cock into her ass cheeks harder,and she said: Please don't".I turned her around,and said"Grab my cock please!She looked down,my cock was out of my shorts,and rock hard. She said" My god,your big!" I said" would you suck my cock?"Without a word,she dropped to her knees,and slowly began to give me a fantastic blowjob. She licked and sucked everything. She even stuck her finger in my asshole!I thought she'd suck my cock,right off my body! Within minutes,I was going to blow,but instead,I pulled her up,and layed her on the kitchen table. She said"Please don't hurt me with that big cock!"

Instead,I began eating her pussy. She told me" Its been so long,make me come!" I attacked that pussy! I licked and sucked,and stuck my tongue in her tight,little asshole. She went crazy! She began fucking my face,with her pussy. Within 10 minutes,she was screaming"Don't stop!,I'm coming!I'm coming!. She drenched me in pussy juice! Even my shirt was wet! As she lifted herself up,she said" That was perfect! I haven't come in so long,now what do you want from me?"I said" I know your pussy wants my cock,but I really want to fuck your ass!' She said" She's never,ever,done anal sex,but if I go easy,she'd try it". I turned her over,she stuck up that ass,and with her pussy juice all over,I began to put it in. She said" It hurts,but don't stop" I slowly started putting it all in.

She began to scream"It feels so fucking good,fuck my ass harder. I pounded that tight hole. All my 8"inches,going in and out. We were both loving it. She began to grind her ass on my cock even more. Holding those cheeks,I was ready to blow. I told her" I'm coming!" And stuck it all in her ass! It was great! I came so much,it leaked out. When I pulled my cock out,she sucked out the rest of my come. I pulled her up,kissed her,and said" That was beautiful! I want you all the time now,can I have you when I want?" She said" That was the best sex she's ever had,and didn't know,anal sex could feel so good!" She said" Whenever I could do it,she'd only have sex with me. I have a new sex friend now,so life is good again!! More stories to come!!