Sexy Fun Times/Wank/Hang/Shower/Leading/Swallow
She looks up at you and smiles. "I want it," she says.
Seconds later, your knob-head is back in her mouth; she takes a deep breath in through her nose and presses down, but her gag reflex makes her pullback. She tries a second time, and this time she has to lift right off and you get a tissue just in time to catch a mouthful of saliva. She wipes her lips with the back of her hand and dives down again. " If that's what she wants, " you think and this time you put your hand on the back of her head.
She tenses up, guessing what you got in mind and pushes your hand off. You don't want to risk upsetting her so you lean back and enjoy the sensation you're getting from her mouth and tongue. When you feel your balls begin to tighten, you try to warn her but she ignores you and soon you're pumping spunk into the back of her mouth, making her choke and gag.
As soon as your cock comes out of her mouth she brings most of the spunk straight back up all over your lap. She's coughing and spitting, but instead of being upset, she looks triumphant as if she achieved something she'd wanted to do. You pick her up and carry her into the bathroom.
moments later you're both under the shower and when she starts laughing she sets you off until you both collapse on the floor of the shower in fits of laughter and giggles.
When you get out of the shower and look at her beautiful young body, your conscience kicks in. You give her a towel and sit down on the toilet seat. "What we did is wrong; it's not just how young you are, but you're my sister too," you say.
"It's not as if you made me do anything. I've been wanting to do that ever since I saw mom doing it," she says. She standing in the middle of the bathroom floor with a towel wrapped around her body and she looks as sexy as hell.
"You saw mom with a man?"
"No, silly, I saw her with you, and if it's okay for you and mom to do it, surely it's okay for you and me?"
"So what else did you see?" You stand up and head off to the bedroom to get dressed.
"I saw you go in her bedroom, but you closed the door so I went back to bed."