I spoke to him, "What are you up to, boy?"  He just wagged his tail and gave me a little bark.  Suddenly, Bruno's ears perked up as he heard mom splashing upstairs.  I guess he decided that he was going to see what was going on up there, as he ran up the stairs.  About one minute later I heard mom yelling at Bruno.  I just sat there in the living room and paying them both no mind.  But, Mom's voice got louder and louder, so I thought I had better go and see what was causing all the fuss.

As I got to the entrance to the bathroom door, the site before me was one to behold.  There was my mom laying on the bathroom floor with her legs sprawled out in front of her.  I had never thought of my mother in a sexual manner- until that moment.  As I stood there, I took in her entire body, which had some remarkable dimensions.  I had never really noticed her breasts before, but they were huge; both tits were hanging down, and almost laying on her upper stomach.  Her pussy was gaped open and wet from the bath water- and then there was her butt, which was really big, just as I liked them.  As I stood and took in her entire body, my cock began to awaken from its dormant stage.

As I began to ccome out of my daze, I realized that she was yelling at me.  "Ray(that's me), what are we going to do?  RAY!!!" 

"Oh, what Mom?"

"I said, what are we going to do?  Bruno won't let me get up from here.  Each time that I try to get up, he growls and acts like he is going to bite me."

"What happened, anyway?" I asked her.

"I was finishing up my bath and I was getting out of the tub, when I slipped and fell on my butt on the floor.  Immediately, Bruno came over to me and began sniffing my crotch and tried to lick my private area.  Of course, I yelled at him to go away, but he wouldn't.  He was determined to continue his assault.  I must have made him angry, because he will not let me get up."

"Here, let me help you up", I responded.  As I reached down to try to help Mom get up, Bruno lunged at me as if he was going to eat me up.  In fact, he scraped his sharp teeth on my arm..

I stood there and tried to think of some  way out, and finally something that my biology teacher told me came to my mind.  He said that many times if a male animal thinks that his female counterpart is tempting him with sex and then changes her mind, he will not give up until she gives in.  I knew that this was not what my mom wanted to hear, but I knew I had to tell her.

"Well, what are we going to do"? she asked again.

I then proceeded to tell her what I had remembered.

"There ain't no way in hell that I am going to let that dog fuck me.  No way in hell!!!  That's disgusting!!!

"Well, it's your choice", I answered.  "You can just lay there until dad comes home and listen to him yell at you about using too much water- and tell you that if you had taken a shorter bath, Bruno would not have been up here."

"Shit!!  I don't guess I have much choice, do I?  I sure don't want to listen to his mouth all night.  How is this done?  I just need this to go by very quickly, and never tell anyone what happens here next.  I can't believe that I'm going through with this."

"I think you have to roll over very slowly and get on your hands and knees, so he can take you from behind."

"I can't believe this!!!!  SHIT!!", mom said.

Mom slowly rolled over and got on all fours, as bruno got on her back and wrapped his front paws around her stomach.  He then started humping like there was no tomorrow.  I could tell that, at first, bruno was having trouble hitting the honey pot, but when he did hit her pussy just right, he humped even faster.

Mom started yelling, "Damn!!! he's too big for me- he is going to rip me apart.  GOD!! he's hurting me.  OOHHH NNOO!!"

But, slowly, you could tell that mom was starting to get into this act.  She stopped yelling that it was hurting her, and she began moaning with pleasure.

"OH YEAH!!!  MMMMM  YEAH!! OH, you feel so good.  OOHHHHHHH I'm going to cum.  OH Bruno!!!!!"  You could tell that bruno was shooting his cum up into mom"s soaked pussy, by the fact that his sperm was running out of mom's cunt.

When bruno had finished fucking my mom, he got off her and ran downstairs, wagging his tail.  "Please, don't ever tell anyone what just happened here", mom asked.

I stood there in front of her, as I helped her up, and began stroking my erect 8 incher.

"What do you think you are going to do with that thing," mom asked me.

"I'm going to fuck you with it."

"Oh no, you're not.  You are my son, and I'm not going to commit incest with you.  That is just plain wrong. Move out of my way way so I can get cleaned up," mom spoke up.

I grabbed mom by the arm and pulled her into her bedroom.  I threw her down on the bed and I immediately got on top of her and started sucking on her big tits.  Mom tried, at first, to pull away, but that didn't last very long as I moved my mouth down to her dog-soaked cunt.  I kept flicking my tongue against her swollen clit, as she began to moan.  I knew that I had her, then.  She began pushing her pussy up to my face as I kept licking her cunt.

"OH, Baby- please fuck me!!  You have gotten me so hot that I can't stand it any longer.  I want your big fat cock inside my willing pussy.  I want you to shoot off inside me, and make me cum."

As mom was saying this, I began pumping my dick inside her as far as I could get.  I kept pounding her ass with my cock, until I heard her scream- "DAMN Baby FFUUUUCCKKK MMYY FFATT Pussy.  FFUUCKK my cunt.  God, you are driving me crazy!!!!  Here I go.  Shit!!!"

Mom's entire body began to shake and tremble as she orgasmed against my pounding member.  As we both climaxed, mom said, "I have to have more of that- I never knew what I was missing all these years.

Needless to say, both me and bruno fucked mom many times after that.