Watching Porn with Sister IV

I'm about to leave for college and everyone is wanting a piece of my time before I go. I feel drained and I haven't even got a chance to cope with the idea that I am leaving the only home I've ever known. I was looking forward to having a Friday night at home alone. I walked in the door and called for them, "Mom... Jill?.. Anyone home?" The house was so quiet, I stepped out in the patio, it was warm outside, peaceful, so I brought my jerk-pad out of my backpack. The hot sun on my shoulders was periodically cooled by a September breeze trying to push the Summer into Autumn, and it made my pressures feel trivial. The seasons were changing whether or not I was ready for it, maybe I ought to just go with the flow like the seasons. I sat down and pulled up one of my favorite porns, the perfect mind diversion, and I relaxed and stroked my cock.

I didn't realize that my sister had come home when I was stroking. I thought I hid myself before she slid open the patio door, "hey, Chad," she said in her sweet sing-songy voice. My sister seems sweet, but she has a manipulative side. She's daddy's little girl and she's had him wrapped around her finger forever, the chump. She's beautiful, she'll climb into his lap, tell him she loves him, and she gets whatever she wants. She tells me she wants to see what I was watching on my iPad, and I try to brush her off, then she tells me she knew I was watching porn!

I've been busted, I admit it, "I was watching porn," and I try to tell her that I thought no one was home. She mentions that she knew my habit of watching porn on the "communal patio," and, "that's gross, Chad." She starts to snap pictures of me with my pants at my ankles, a blanket covering my softening erection, and then she grabs the blanket and tries to take a picture of my dick! I try to take her phone away, and she tells me "STOP! The pictures are loaded into Facepage and all she needs to do to post them is tap the screen." I fall backward in a panic. I try to tell her how wrong this is, but she doesn't want to hear it. She puts on her sweet little voice, the same one when she calls for "daddy" when she wants something, it makes my dick twitch. "All I want to do is watch a porn with you, Dad put the parental lock on my computer and I can't even shop for underwear online."

Ok, this is weird, but ok, I can watch porn with my sister. What's the big deal? I push the play button and I watch her breathing slow, she's relaxing, she's focused. She has questions. She wants to see a real penis, in person. She gives me 'that little girl look" again, and her lower lip pouts, "Can I please see your penis, Chad?"