You not sure you'll be able to, But Your Big Sis has some ideas

You move to get up and leave the bar, not quite sure what to make of Ruby's plan, with your current track record, you weren't confident of being in control enough to resist any urges. Even now just looking at how well her older body fills out her outfit was causing Mira's gift to stir to life in the right confines of your Jeans.

The old T-shirt she was wearing straining to contain your Big Sisters, even bigger tits. The way her yoga pants clung to her long legs, and thick thigh. Then there was Ruby's captivating smile and sparkling blue eyes, full of the same mischievous life you remember from when you were growing up together. The entire combination set off alarm bells in your mind, that sharing a bed with your Older Sister wouldn't end any other way other than you being balls deep inside of her by the end of the night.

Yet, something about that devilish grin and glint in her eyes gives you a sense of confidence. Perhaps if you can't control yourself, that Ruby will keep you in line, keep you from crossing yet another line you couldn't uncross. It would be a challenge, a real struggle, but maybe your Older Sis can steer you right. Perhaps she's just what you need to help keep your urges in check. Little did you know just how soon your willpower would be tested.

"Awww don't tell me, you're both leaving already?" A male voice says from behind you as you slide out of the booth after Ruby.

You turn around and see a couple of men in their late twenties or maybe early thirties if you had to guess. They seem nice enough, even fairly attractive and well dressed, but something about them makes you feel a sense of unease, despite them not giving you much reason to. It takes a moment but you realise that it's coming from the back of your mind, roughly where you would loosely describe as where Mira's voice typically emanates from.

"Let me and my buddy at least buy you two a drink?" The first man continues with a smile.

You glance over at Ruby, who picks up on your unease and reaches over and takes your hand into hers, your Older Sister giving it a reassuring squeeze. "Sorry Boys, this one's already coming home with me tonight," Ruby says smoothly.

Then in one swift movement, in order to prove her point, Ruby pulls you into a tight embrace, and presses her lips to yours, her tongue teasing across your lips until you part them. Your body reacts before your mind can work out what is happening. You stand before the two men eagerly reciprocating your Sisters kisses, your tongues swirling and mingling, blood rapidly rushing to your cock.

"Come on now, I want to know if your other lips are as sweet as these," Ruby says in a sultry tone, going in for another quick kiss, and playfully biting down on your bottom lip as she pulls away. Leaving you and the two men standing there stunned in silence before Ruby practically drags you out of the bar.

Your head is spinning in the cooler evening air, a combination of the drinks and your Older Sister having kissed you so passionately, far more than was needed to get rid of the two guys hitting on you both. You blink a few times in stunned disbelief as Ruby bursts out laughing as you walk back home. You can't help but notice a certain stiffness in your jeans making it more awkward to keep up with Ruby.

"Did you see the looks on their faces?" Ruby asks, still giggling to herself, her soft laugh taking you back to sweet memories of some of the other mischief you both got up to growing up together. Ruby turns back, her soft lips curling into a familiar smile. "Oh, I needed this," She says with a grin.

"Been too long," You agree with a smile, awkwardly fumbling with your jeans to try and accommodate your rapidly swelling cock.

"Oh shit, was my little stunt back there too much?" Ruby asks with a soft chuckle as she walks back and joins you by the wall to stop by to lean on while you try in vain to shift your hard-on into a more comfortable position.

"Sorry," You apologise going red in the face. "It's got a mind of its own and the kiss took me by surprise is all," You add quickly, turning away and trying in vain to adjust your jeans to conceal the prominent outline of your hardening length.

"Amy, there's nothing to be sorry for," Ruby says in a reassuring tone, placing her hands on your shoulders and turning you around to face her. "It's kind of flattering knowing I can still have that effect on people," Ruby adds with a soft playful giggle.

"You're welcome?" You reply, nervously.

"What?" Ruby asks steeping back with a soft laugh, "It's nice to know I can have that effect on someone, especially after Jack," Ruby explains with a smile. "Granted, it's a little weird that the first person I get to pop a boner is my little Sister, but hell, I'll take it," Ruby adds with a cute little giggle.

You shuffle nervously, trying to avoid your Older Sister's gaze, feeling more than a little uncomfortable that she can clearly see just how excited the kiss had gotten you.

"Look it's fine, like most guys when they're young, they can't help themselves," Ruby says in a softer more serious tone. "You've had that thing, what less than a month?" Your Older Sister asks with a sly smile, "Of course, it's going to get hard at the slightest hint of action," Ruby says with a big smile.

"You reckon?" You ask uncertainly.

"Think about it," Ruby begins with a smile as she takes your head and helps you back up to continue walking back home. "When guys first reach that age where it all starts working and those hormones start raging, what do they do?" Ruby asks.

"How should I know?" You reply nervously.

"The same thing, you did, the same thing I did, the same thing our Mom did, the same thing most people do when they discover how nice it can feel down there," Ruby explains with a grin. "Don't think I was oblivious to what you were doing to that poor showerhead of ours all the morning," Ruby adds with a soft laugh.

"Alright fine, they masturbate, what's your point?" You reply, feeling your cheeks flush red at your Older Sister's revelation that she knew all about your showerhead secrets.

"Because my dear sweet Sister, you are still in that awkward phase where you can hardly handle your urges," Ruby explains with a grin. "Even now, I bet you can't help yourself if I do this," Ruby says, suddenly backing herself into your and brushing her body against yours.

You feel your hands instinctively move up and begin to rub your Older Sister's body. Your cock twitches as you feel Ruby's ass grinding against you, your cock trapped beneath the tight confines of their denim jail, throbs in frustration, aching to be free. You feel a primal urge inside you, crying out for you to tear off your Sister's clothes followed by your own.

"Sorry," You apologise, stumbling backwards away from your Older Sister's body, shaking your head and taking deep breaths to try and calm yourself down.

"Stop apologising," Your Older Sister chides turning to face you. "I was proving my point," She adds with a smile.

"I know, it's just, I can't help myself," You respond letting out a frustrated sigh. "It scares me," You confess softly

"Of course it would," Ruby replies softly, "You haven't learned how to control those urges yet," Ruby replies in a mocking tone as if the idea should be obvious to you. "Maybe jumping into bed and seeing if you can resist might be a bit too much to ask right away," Ruby muses with a soft smile.

"I think, we both know how that would end," You admit, with a sigh.

"So we just need to work up to it," Ruby replies with a smile. "Give you a few tests to help you learn some self-control," Ruby continues with a grin.

"What sort of tests?" You ask nervously.

"Oh, something I think we'll both enjoy," Ruby replies in a teasing tone.

"But what if Mira tries something?" You ask nervously.

"Well, that's a risk we're going to have to take," Ruby replies with a smile. "But she hasn't interrupted so far, has she?" Ruby asks.

"No, she hasn't" You confirm

"Well that's either because she knows how this ends and knows she doesn't need to, or she does actually care about you in her own weird way and is leaving you to it," Ruby muses.

"Is what my Sister saying true?" You think.

"Mmmmm not so loud, my priestess, your alcohols are somewhat more potent than anything my old worshipers could brew," Mira thinks back her soft tones sounding ever so slightly slurred but also noticeably avoiding the question.

"Sorry, but I need to know if what Ruby said is true, Do you care about me?" You think back, in a calmer tone.

"Of course, I care, My Priestess," Mira coos in a soft tone. "Have I not been honouring your request from earlier?" Mira adds in a soft silky tone.

"You have, but I still don't feel like I'm in control," You think back.

"Perhaps what your Sister says is true, that you simply need to learn control?" Mira muses musically.

"Promise, you won't interfere with me or with her," You think back at Mira.

"You truly think so little of me?" Mira coos back with a soft haughty laugh.

"Promise me, please," You mentally plead. "I need to do this, I need to know If I can control myself," You continue to plead.

"Fine, if this is what you need of me then you have my word, I shall not use my powers, influence or in any way interfere, with you or your Sister, unless you ask me first," Mira states, her voice loud and echoing through your skull.

"Thank You, Mira," You think.

"Hello, Earth to Amy, are you in there?" Ruby asks waving a hand in front of your face.

"Sorry, was just trying to speak with Mira, make sure she doesn't try anything," You reply nervously.

"And what was the verdict?" Ruby asks with a smile.

"She said she wouldn't interfere," You reply with a weak smile.

"Excellent, now we can get back home, and start tests to help build up some self-control," Ruby excitedly replies with a grin.