Chapter 8 - made bet with bro now sister need to blow (R18+)

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Chapter 8

I suppose the fear that she might quickly run through her ten masturbation sessions and then stop was what prompted me to take a gamble. The next time she took me into her room, she tried to lay down the law again. "No touching, and you can masturbate if you want, but you can't come near me. It's not fair to make me suck you off and watch too, that wasn't what the bet was."

"But you enjoy it," I said.

"I do not. I'm not a sick perv like you, I don't want to do any of this. The only reason I'm doing this is because of this stupid bet. I wouldn't do any of this if you didn't force me."

I'd had enough. "Fine, if that's the way you feel, how about a new bet?"

She started, not expecting that. "What?"

"Another bet. If you win, the rest of your obligation is off. If I win, we up the ante. I can touch you any time I want, anywhere I want."

"What?" she repeated.

"You heard me. So, do you wanna bet?"

"Wait, what do you mean whenever you want? Cause when blowjobs were whenever you want, I had to be, like, at your beck and call."

That was a fair point. I wanted to make it easier for her to agree, so I backed down a little. "Okay, anytime we're alone, then. But you can't just run off whenever I lay a hand on you either, you take it until I'm done with you."

"Good, because that's one thing, being some kind of... sex slave, that's another. I guess that's okay. I bet you're going to keep touching me anyway, at least this way I have a chance at getting out of it." But the way she said sex slave, a little breathily, made me wonder. Maybe that was what she really wanted. She just wanted to be pushed into it. For one instant, I was absolutely sure of it.

Or, perhaps, it was just what I wanted. I wondered just how far I could go with her, and I wasn't sure that I'd stop until I found out what the boundaries were. If I could take absolute control over her, I would. I didn't really want to hurt her, but if she wanted that, and I wanted that, everybody was happy, even if I had to pretend to force her into it. You can't really force somebody into doing what they really want. But how would I know for sure whether she wanted it and just wanted to deny it, or actually didn't want it? I only had one idea. "Aren't you wondering what the bet actually is?"

"Oh, yeah," she said as though it she'd forgotten that little detail. "So, what is it?"

"A game. On the Wii downstairs. Your choice. The bet is simple... I bet I win the game." I was better than her at most of the games we had, because I bought them, but there were still games where we were about even or where she usually beat me. I thought it would be a fair test of my theory. If she chose a game I was better at, or did poorly at one she was good at, it would prove to me, beyond any doubt, that she wanted it. Then it would just be a matter of pushing her where I wanted her to go until she started to push back.

I didn't think I was risking too much. Even if I lost, she'd already bet sexual favors once, I knew I could get her to do it again sooner or later.

She went downstairs to the Wii console and began looking through titles. After a half hour, she chose a game that she was better at. It was the table tennis part of Wii Play. When we first got the system, she kicked my ass on that game right away, and although I'd gotten better, she still beat me most of the times we played, and I spent most of my time playing newer games. I worried that I might have misjudged the situation. "You'd better play your best," I said. "Because if you lose, I'm going to be taking full advantage of my newfound rights."

We played. The game rules had the first player to 11 points win. She served first, and scored the first point because I missed, and then she scored another on the next round. Then I started remembering my old moves, and was able to gain ground.

I have to think she let me win. It was too neat to happen otherwise. Throughout the whole match, she'd let herself get 2 points ahead, and then she'd start playing poorly and I'd catch up.

By the time she was at 9 points, we were tied. I scored the tenth point first, overtaking her for the first time, and on the next round she caught me again. It was down to the tiebreaker. "You're going down," I said. "Or maybe I'll go down on you. I haven't decided." I stuck out my tongue and lewdly wiggled it to demonstrate the pun.

I served. It was a difficult shot, but by no means out of her range. She should have been able to at least return it and we'd have some back and forth. She missed it entirely.

"No!" she moaned, her eyes wide. She threw the controller down. If it hadn't been aimed at the couch, it might have broken from the force of the throw. "How could I have missed that?"

"Maybe you wanted to," I suggested.

"Don't be stupid, of course I didn't want to. What kind of sick person would want their brother to do stuff like that to them?" Her eyes welled up a little, but I knew she could cry on demand. "You just psyched me out, that's it. I got freaked out about losing and I played like shit."

I had no sympathy. I'd given her enough chances to win her way out of it. "Whatever. I won." I patted my leg. "Why don't you bring my winnings over this way."

She slid over to me, head down, but hopped onto my lap. I leaned back and pulled her with me, running my hands over the exposed areas of her body, her legs, arms, and belly. Then I slid my hand underneath the shirt and up to her chest, fingers ducking beneath the bra. I squeezed her developing breasts firmly, getting a good fondle of each of them in turn, as my other strayed down to undo the button on her shorts.

It popped open, and then I had one hand playing with a nipple, the other rearranging her pubic hair as she leaned back into me. She took it passively, not complaining, but not engaged, either. As I slid my left hand lower into her slit, I felt how moist she'd become, further reinforcing my belief I'd interpreted things correctly. If she didn't want it, she'd be bone dry, and if she was bone dry, I don't think I would have pressed her. Instead, I rubbed, my fingers attracted by the wetness, seeking out the hole it came from. When they reached the source, I stuck two inside and curled them. Her butt was nestled up against my crotch, and she must have felt my erection pressing up against her, but she didn't complain about that, either. She just accepted it, letting me do whatever I wanted.

I knew then it would only be a matter of time before I fucked her. I probably could have done it that day, if I pushed hard enough, but I wanted to take it slow, ease her into it one step at a time, and tease her a little. My secret goal was to get her to beg me for it, but if she was so fucked up that she needed to lose bets to get what she wanted, I doubted I could hold out long enough for that.

If I couldn't have her beg, I was at least determined to leave her wanting more. I kept up a steady pace of stroking and fingering, until I thought she was getting close to the edge of orgasm country. When she reached that point, I withdrew my fingers, now soaked in her juices, and lifted her off my lap with both hands. "Okay, that's enough."

She stared at me uncomprehendingly. "What?"

"That's enough for now. You can go." I picked up the game controlled, and started a new game, a single player round of tanks, pointedly pretending to ignore her.

After a few seconds, she got up, and walked away on unsteady, rubbery legs, towards her room. "Remember," I called back after her. "No masturbating while I'm not there." She didn't speak, and I smelled my finger and went back to my game.

She held out an hour before coming back to get me. "I want to masturbate."

"Yeah, I guess it was unfair of me to get you all worked up and not get you off," I said.

"It wasn't you," she insisted, but was unconvincing. "I was watching my DVD of Twilight.''

"Sure. Let's go, then." I followed her up to her room, smacking her bottom playfully as we climbed the stairs. Once there, she pulled off her shorts and sat down on the bed. "You might as well get all the way naked," I said, "Since I'm probably going to be touching you anyway. There's no reason to make it difficult for me."

She frowned, and then removed her top, and finally her bra, then lay back, made herself comfortable, and started touching herself. She kept her eyes on me. I unzipped and pulled my cock out in advance, although I felt up her chest for a while before doing anything. When I did, I rubbed it on her breasts, teasing the nipple. "It's too bad you don't have bigger tits," I said. "There's not even enough to titfuck here." She told me to shut up, so I let go of her, stepped back, and just kept watching.

Soon, she closed her eyes and began to rub more vigorously. I leaned in for a close look, and then, as a surprise, stuck my tongue in past her frantically moving fingers and around her clit, and wiggled it. I'd tasted one girl's pussy before, but this one tasted much better, stronger than the remnants of her juices. It tasted a little like an apple that was just a little sour, but not unpleasantly so.

The response to my little taste test was immediate. "OH GOD!" she cried. Her back arched up, bringing her pussy upwards, closer to my mouth, and the lick inadvertently became a kiss.

Faith collapsed in a heap, her hands dropped to her side. Once she caught her breath, she said, "You weren't supposed to lick. Only touch."

"I was touching you with my tongue. You never said what I could use." I ran my hand into her red hair and ruffled it a little, and then left her lying naked. I didn't trust myself to masturbate in front of her without deciding to try then and there to fuck her, so I went to my room to do it alone