Stepmom wants a little more

My dad remarried about 4 years after I graduated college. I live with him after college because I got a job in my hometown after graduation.

His new wife Katherine is about 8 years younger than him in her mid 30s. She moved in after they married but have both gotten looks on the street about if they should be together. The biggest difference between them is looks. My dad is a good looking man after a divorce but Katherine blows him away.

Rich olive skin with no blemishes. Perfect D cups that are perky and round. An ass that fills up everything she wears. And just a kind look on her face that makes everything feel right when you look at her.

I'm always able to get home early after work because my job makes it easier to get done with work quickly. Whenever I get home Katherine is there in her workout clothes because she is an online fitness instructor so she works from home but pulls in the bank.

My dad normally gets home around 8:30 and is exhausted because he works in construction and in the summer he is burnt out every night.

I can hear them having sex a few times a week because our rooms are close and Katherine is loud but it never goes on for long because I can hear my dad grunt and cum within 5-10 minutes. I've seen Katherine walk to the bathroom, from my door being cracked open a few times, to cleanup and she doesn't look as satisfied as she wants to be.

I've started to notice that she starts looking and checking me out a little more than she used to. I'm not crazy when it comes to muscle but I work out a few times a week and keep my body healthy. I also don't have a crazy big dick but I can work it well and satisfy people a lot.

I then start coming home from work and see Katherine in her workout clothes that somehow keep getting smaller so I see more skin and more sweat which can turn me on sometimes. She always manages to change before my dad gets home so she can sort of hide her "slutty" side from him.

One day after I get home from work I see her drenched in sweat and a beer in her hand after a long day of heavy workouts.

"How has your day been today" I ask her admiring her body. "Long" she says, out of breath and barely able to stand. "Need some help getting to sleep" I asked her already moving to help her to her bed. She nods and I guide her to my dads room. As we walk my hand is on her back and I try and be discrete as I slide it down to her basically bare ass. When we get to her bed I give her a squeeze and a grin as she glances to me with a confused look in her before she passes out in mere minutes from exhaustion.

She wakes up a few hours later around 6:00. She put on a long baggy shirt hiding her curves which is basically impossible and says hi as she walks to the fridge to reheat some pizza. I'm on the couch watching some basketball with some pizza and a beer. Katherine then sits next to me with her freshly shaven legs pressed up against my side.

Seeing her in this way with her hair in a messy bun get me worked up and a bulge starts to form in my jeans which I try to hide with my plate. Katherine glances over and can see what happened and grins at me with a longing look in her eyes. "I thought about what you did before I fell asleep earlier" she say, I start to get flustered and apologize "I'm sorry, I shouldn't have done that" falling over my words. She laughs and says "It's been a while since someone has admired my body outside of sex, maybe you can help with that". I get a full erection from her saying that and I watch as her hand moves to my bulge and starts feeling my dick.

"We shouldn't be doing this, what if my dad sees" I stammer even though I like where its going. "Your dad won't be home for a while and he doesn't give me enough so I wonder if you can. That's why I've been getting skimpy with my clothes, just waiting for you to make a move" she says taking off her shirt with her left hand revealing her curves straight in my face. I straight away take off my jeans and my dick springs into the air with some precum leaking out.

"Looks like you made your move" she says with a smile as her head slides down onto my dick and swallows it whole. The head that she gave was amazing. Her head slid up and down with ease with her tongue licking my cock head when she needed air. I then ripped off her tank top and her boobs spilled out and her nipples were alredy hard. My hands got a mind of their own as they went straight to them and began feeling them and pinching her nipples which made a moan escape from her as she sucked me.

After about 10 minutes of this I was about to cum so I told her and she decided to stop and let me rest for a sec. After about 5 minutes of making out and feeling each other Katherine pushes me so I'm fully stretched out on the couch and my cock is straight up in the air as she moves back. She reaches to her wet pussy to get some juices to lube up my cock as she slides her big tits down on it.

She felt amazing. Her titty fuck was amazing with her soft tits and how she never let go of eye contact. I was already needing to cum in a few minutes so I told and and she said "Cum over your mommy's huge tits baby" as she stroked my dick. I then shot out 3 ropes of cum onto her tits and another onto her stomach. She licks it up and swallows it.

We both go to cleanup and change to go out for dinner that night with my dad. We keep stealing glances with each other but my dad doesn't suspect anything.

After we get home my dad crashes into bed and as I go to my room to sleep Katherine whispers in my "Tomorrow, make sure you put it in me"