Setting Boundaries

The Doctor has very specific tastes in pornography. Namely, she likes her girls blonde, bottom-heavy, eager and barely dressed - y'know, like her - and her men to be me. Literally. My porn is the only porn she's ever accessed; it's honestly rather flattering. Still, having already lived it takes away a lot of the enjoyment of watching it, so I quickly discard my research into her 'research' and return my attention to the mother-daughter bonding session I kicked off. Aphasia's clearly losing the fight for the top, her booty shorts pulled off to expose her lack of underwear and her tight, puffy pussy. The Doctor holds both of her 'daughter's' arms over her head, pinning her wrists together with one slim, deceptively strong hand while the other slowly strokes down her body towards her lower lips.

The fight goes out of the younger blonde almost the instant the first delicate finger slips inside of her. There's a short, soft gasp and her body goes limp, now more supported by the Doctor's hand than her own shaking legs. A second, then a third finger completes her transformation from taunting hellion into meek toy. "Good girl," the Doctor purrs, giving Aphasia's virgin pussy a moment to get used to the penetration, "such a good, good girl." She begins to pump her hand, quiet squishing noises indicating just how wet her 'daughter' is, and licks her lips. "You've been very naughty, Aphasia," she continues in the same low voice, "teasing your mother like that. Now, are you ready to be good?" Aphasia nods drunkenly as a dozy smile begins to form on her face. "Good girl, Aphasia."

The Doctor slowly pulls her fingers free and slips them into Aphasia's mouth, where the younger blonde begins to suck on them obediently. "Now, you're going to go and get some fresh clothes on from the wardrobe," the Doctor says sternly, "and then you're going to go to your room for the rest of the day and think about what you did and how naughty it was." There's a gleam in her eye that says she knows exactly what Aphasia's going to be doing while thinking about what just happened. "And then you're going to come to your mother's room and lick your her pussy until she decides you've learned your lesson." Aphasia nods meekly - or as best she can while sucking her own juices form her 'mother's' fingers - and half-staggers, half-struts out of the console room when the Doctor releases her. The Doctor turns towards me with a not-at-all-apologetic smile and a shrug.

"Kids, eh?"

Having decided it's about time I got some beauty sleep of my own and retired for the night, I'm awoken by the feeling of a hot, sloppy-wet mouth bobbing expertly up and down the length of my cock to the sight of a shape under my covers. When I grab them and pull them off of m- off of us, Aphasia's hungry green eyes are staring directly into my own as she gives head like she was born for it. If she wasn't, it's a hell of a coincidence - her spit alone is coating my crotch and staining my sheets with how much of it there is, and her throat is tight and welcoming in equal measure. She ever-so-sllllooooooowwwlllyyy pulls off of me, lips sealed and cheeks hollowed around me the whole way, before releasing the head of my cock with an obscenely wet POP. "Mmmm," she hums, noisily licking her lips, "Daddy's dick is so good..."

I settle back down onto the mattress as she starts nuzzling my spit-drenched shaft, smearing her own saliva across her face. "The smell, the taste, the way it stretches me..." She sighs happily. "...the way even I can't make it pop without Daddy's permission... It's just perfect." Size and endurance above everything, I think to myself, she really does take after the Doctor. In more ways than one, as her hands begin to squeeze and massage my balls and she presses her chest down onto the mattress while pushing her hips up and back. "Mother doesn't know I'm here," she purrs, planting a noisy kiss on each of my balls, "sucking on her size-queen fantasy. Mmmm... She'll be so jealous when I-"

"Stop."

She seizes up with a sharp gasp and a jerk of her hips that tells me exactly what my sharp tone does to her. "You will not tell her about this," I tell her, watching her start to shiver and whimper, "because you don't really want to, do you? That's perfectly normal, don't worry; after all, you like to get her really riled up and **** - and won't it work so much better if she doesn't know she's already lost?" She groans in a mixture of agreement and need, her hands leaving my balls so she can reach back and finger her asshole with one while rubbing her pussy with the other. By the sound of it, her lower lips aren't any less wet than the ones on her face, and she proves how wet those are by suckling on my balls - thanks to her 'mother', they're far too big for her to fit them in her mouth, but her lips and tongue working back and forth is a nice substitute. I drift off to sleep to the sensations and sounds of sloppy, **** ball-worship - not for the first time, but this is only half my plan.

The first thing I do when I see the Doctor next morning is grab a handful of her ass and stuff two fingers between her lips. She sucks on them obediently, but her eyes are still flashing with outrage before I explain myself. "I know you watched us last night," I say, "and I know you spent the whole time masturbating to it rather than coming to stop us - that's fine, that's normal. What I don't get is why you seem so angry about it now." She goes to push me away, but a hard slap and an even rougher grope on her ass makes her anger stutter long enough for me to continue. "I mean, you normally get so hot and bothered when you see your daughter think she's getting one over you, I figured you'd be fine with me indulging her attitude."

I pull my fingers out of her mouth, and she's already settled down to a more normal blend of lust and confusion about where I'm going with this. "Here's how this is going to work," I tell her, "I'm going to fuck your daughter whenever, wherever and however I want - and you are going to pretend that you don't realise what's going on. All that 'sneaky' sex you see in porn? You're going to be getting a front row seat to it."

"Th-That's-" SLAP "AH!"

"Getting you super wet and flustered, just like it normally does? You're right," I say breezily, bulldozing over her objections, "but that's not all. Imagine how it'll feel when you're up on the stage, to be able to look down and see her 'stealthily' sucking me off under the console, never realising that you've got just the right angle to see her. Imagine how it'll feel when you can watch me fuck her in the shower, and she thinks she's hidden because she doesn't know you can ask the TARDIS to make the partition into a one-way window. Imagine how it'll feel when I fuck her so hard beside the pool she can't even tell what's going on around her, and I keep whispering to her to be quiet so you don't notice us from your sun-lounger - and you're already rubbing one out to the sight of your daughter getting ploughed."

"Mmph... How do you convince me that this kind of stuff is a good idea," she grumbles good-naturedly, swatting my hand away from her ass.

"Because I know what you like," I reply, swatting away her own attempt to 'discreetly' grope the bulge in my pants in turn, "and since you're an exhibitionist, a voyeur and you love cock almost as much as you love feeling clever, I figured this would be right up your alley." She hums thoughtfully, no doubt already considering the myriad ways to arrange a discreet way to watch Aphasia get what she herself craves. The self-discipline on this woman is, frankly, astounding - I've met women boasted to be the toughest in the world and had them **** themselves on my cock just by making them wet, but the Doctor's practically marinading in lust and still looking for ways to stay in control. Or as 'in control' as she can, at least.

That control slips a bit when we get to the console room and Aphasia demands to be the one to fly us to our next destination, but watching the pair of them rip each other's clothes off as they work the pole together is hardly the worst outcome for any of us.