“Just play with it,” I instruct her. “Explore it and see how it reacts when you touch it. Don’t be afraid; you need to learn this, Lisa.”
“I’m not afraid!” she argues, as she leans her face closer and begins stroking my cock up and down. As she moves her hand up my cock, it twitches and she jumps.
“It likes you,” I say, smiling at her. “That’s what I mean by exploring. Stroking it like that felt good, that’s why it moved. Keep doing that and use your other hand to touch my balls.” She keeps stroking my cock up and down with her right hand and moves her left hand under my balls.
“Just cup them lightly, then drag your fingernails across them.” I lay my head back on her bed, as she strokes my cock and caresses my balls. “God, Lisa, that feels really good.” I watch her face and she seems as mesmerized by my cock as I have been of her pussy.
“If you keep doing that, I’m going to cum,” I tell her. “It feels great, but we’re not here to learn hand jobs. Keep stroking it like that and playing with my balls, but lean down and start licking the sides like an ice cream cone.”
“Like this?” she asks as she begins licking the head of my cock.” Just as I’m going to tell her she’s doing great, I realize I’m going to cum.
“Lisa, quick! Wrap your lips around the head of my cock.” I’m lifting my butt off the bed and pushing my cock up into her mouth, as I say this. “I’m going to cum and you need to catch it in your mouth and swallow it. Hurry!” She wraps her lips around my cock and I instantly begin spewing cum into her mouth. Her eyes get real big, as she looks at me with a questioning look on her face.
“Swallow it!” I yell. “Go on and swallow, but keep your lips around my cock, there’s more.” And there is, it’s been building up since I watched her changing into her swimsuit. She starts swallowing, almost gags, but then keeps sucking on the head of my cock until I’m drained. I lie back on the bed as Lisa’s licking the last bits of cum off my cock and from around her lips.
“It tastes funny,” she says, smiling. “But I kind of liked getting you off like that. Wow, you were really moving in and out of my mouth when you came. Did I do okay?”
“God, Lisa, you did great,” I say, and then realize that I want these lessons to go on for a while, “for your first time, I mean.” I look at the clock and see that Mom will be home in about half an hour.
“Look at the time. We’d better stop for today.” I’m looking at my beautiful, naked sister, who is still on her knees between my legs, and another thought occurs to me. “How do you feel, Sis? Did sucking my cock make your pussy wet?” I’m starring at her blonde pubic patch, as I ask her this.
“Yeah, it was a real turn on. More than I thought it would be. I didn’t want to stop and I’m still pretty hot and wet down there.”
“Let me see.” I slide down and put my hand between her legs. She moves her knees apart to allow my hand to touch her pussy lips. They are soaking wet and when I run my thumb up and down her slit, she moans, putting her left hand down on the bed to steady herself. She’s steamy hot and we only have a few minutes.