I rounded the corner to the master bedroom and froze. Normally I wouldn't look in on my dad and step mom having sex. But this was not a normal situation.

My step mom noticed me almost immediately. She made no attempt to move from the position she was in. I watched her take my dad's pummeling as she quietly mouthed three words that sent a chill down my spine.

"I'm so sorry."

She lowered her head with a shake. Then she moaned. She didn't sound sorry. I quickly rushed off to the kitchen to grab my car keys. I guess I wouldn't be going to the library today. I could hear her pummeling growing louder upstairs. She was moaning. Then I saw the letter folded next to my car keys on the kitchen table.

Dear Brandon,

We can discuss this at a convenient time, thought I don't know when that will be. I know you've been hard at work researching to find a way to extract me from your step mother's body. I appreciate it. But the situation has changed.

It's not my fault. I wanted to escape this body as much as you did. I was a nervous wreck. Then two weeks ago I got drunk. Your father was working late and I raided the wine cellar just to cope.

It was like waking from a dream - the way he touched me when he came home.

I didn't know what was happening until he was inside of me.

Perhaps I should spare the details but after a few minutes he flipped me over

He said, "finish me." I don't know what welled up in me, but feeling him like that inside of me sent my hips to work. I did as he said. I even asked him if I felt good. He smiled and said, "yes." My pussy swelled at his response. I was ready for him.

I remembered what you said: "Don't let him come inside of you - it could spark something inside of you." But it felt so natural. Fucking this way is so much better. I don't miss my cock at all. The sensations my clit give me make my entire body shake, and it feels like a gateway has opened where my balls used to hang. I'm glad they are gone so my sensitive lips can be spread by your dad's cock. I love the full feeling of fucking my pussy around his cock - there was no way I could stop. I finished him off. I'm so sorry. It felt amazing to work my hips and take him to the edge.

He came deep inside of me. It was one of the most amazing experiences of my life.

I squeezed my pussy muscles (I had been using then to squeeze his cock) and his come slipped out of me. I was a little worried but then I felt his ring around my finger and my body overwhelming told me that this was right.

Of course all day the following day I regretted what had happened. I resolved not to let it happen again and prayed I wasn't pregnant.

Your father fell asleep that night.

But then, I couldn't sleep.

I woke him up, Brandon.

And I had to be sure he'd fuck me. I woke him up with my mouth.

All day I had thought about it. How your dad fucked me. How women pleasured men. At some point I stuck my fingers in my mouth to see what it would be like.

I've learned there's no delicacy better than a hard cock in your mouth. I am not ashamed to tell you that. In many ways this was the night I became a woman.

I knew this was self-denial. I lifted my nightie and got into position.

I could feel something happening inside of me. Like my old self taking root in this new body. It's power being used to fuel my desire. Worse I could feel my manhood slipping away and that I didn't care. This body was absorbing me. Could it be exposure to your dad's come?

Whatever the reason, it didn't stop me from doing my wifey duties when your dad came home stressed the next day. I leapt on him.

I could feel my old self panicked inside of me. Every time I took your dad into my mouth it weakened. I had noticed that morning your stepmom's - I mean MY crows feet seemed more shallow. My tits more perky. My eyes were brighter. I turned in the mirror. My ass was smooth and bouncy. It looked like it had aged in reverse ten years. Something was happening.

I checked my old self for any hint of a desire to leave. It responded back, as if it occupied 90% of the power it once had. My body was younger. But it had aged.

At this rate what will I look like in two weeks? I mean, my pussy keeps getting tighter. Does that mean somewhere inside of me my cock is shriking?

I love feeling it age inside of me though. Every moment it retreats I feel more and more like a woman.

I need to go. Your dad will be home soon and I want to fuck him. We're trying. It was my idea and today is prime time for my cycle. I'm going to make you a half sibling in my womb. Isn't that hot?

Thanks for all your help. I know you tried. Don't worry, I'll take good care of your step dad and you.

Love, Sandi

P.S. I'm so sorry.

TWO WEEKS LATER

"Honey, you look so young. Like you are in college. I don't understand it."

"Giggle I told you, Daddy. I bought a new moisturizer."

That's my new pet name for my husband. He likes that I call him that. He gets harder in my mouth.

I haven't told him I'm late.

My masculinity has withered inside of me. I feel its last gasps. It was so strong, and I'm thankful. It provided plenty of energy to take this body back to it's prime. I'm not complaining. Brandon's dad fucks me even harder now.

I ache thinking of the passing of time. With a mouth full of come.