I take a long hot shower after a particularly stressful day at work. Afterwards I wrap a towel around my waist and sneak across the hall to my bedroom.
I thought I got across without being seen, but I was wrong. My little sister invited you over for the evening to study, or gossip, or whatever it is you girls do. You both went to bed, but you just happen to be heading to the bathroom when you catch a glimpse of my dash across the hall.
As you return down the hall after using the bathroom you stop in front of my door. You silently open it a crack, and peek inside.
You see me laying nude on my back in the center of the bed. My head is laid back and my eyes are closed. One hand is slowly stroking my cock, while I am gently massaging my thighs and stomach with the other.
Not wanting to get caught peeking by my sister, you push open the door just enough to sneak into my room, and close it behind you. You reach a hand down between your legs and start to rub your awakening pussy over your clothes.
I run my second hand up my shaft below the first, then slowly twist my hands up and down my hard cock. A bead of precum sits at the tip of my dick. I rub my hand over the head of my cock and let out a small moan as I continue to pleasure myself.
You push your hand down and into the waistband of your panties. As your fingers come into contact with your moistening pussy you let out a small moan by accident. You cover your mouth quickly with your other hand, but it is too late.
The sound startles me from my almost meditative state and my eyes pierce you on the spot. I jump up and stand by the bed with my hands placed firmly on hips. My hard cock throbs as it stands up in front of me on full display, I make no move to hide it.
"Get over here now!" I point at the floor directly in front of me, and you walk over with your head down in shame. You give me a soft "I'm sorry" as you approach.
"Take your clothes off. It's fair, you were looking at me naked." I demand sternly. I stand silently and watch as you slowly obey the order.
You reach down and grip the hem of your shirt before slowly lifting it over your head, revealing a small black bra underneath. You push your shorts down your legs and step out. You reach behind and unhook the bra, but hesitate a moment before letting it drop.
You look up into my face with embarrassment. My eyes look into yours, silently conveying my will for you to continue. You pull the bra off the rest of the way and drop it by your feet. Then you push your panties slowly down your legs and step out while still hunched over.
My eyes explore your body as you slowly straighten back up. Your cheeks flush with embarrassment as my eyes wander up and down your body.
"On the bed, hands behind your back," I command. You turn towards the bed and I give you a small push on your back. You crawl onto the bed with your cute ass wiggling at me. Then you lower yourself onto your front and put your hands together behind your back. You look back over your shoulder at me, and find me across the room returning with a pair of handcuffs.