Double down!

Dana's turning an adorable shade of purple, so you keep your hips pressed against her jaws and start stroking yourself through her throat.

She tries to scream, but succeeds only in sending incredibly vibrations down your shaft. If you hadn't just emptied your balls inside your mom a half-hour ago, that would be more than enough to put you over the edge. As it is, your cock just throbs as Dana flails her arms and legs wildly. You make sure to get them in frame as her limbs slow, then droop, and finally stop moving altogether.

You can feel the moment she passes out; her gag reflex suddenly disappeared and every muscle in her esophagus relaxed, leaving your dick in a soft, warm tunnel. You enjoy it for a thrust or two, but quickly pull out to let her breathe again. You want her ****, not dead.

You save the video and send it to David, with the caption:

--She's out cold. Get here quick for sloppy seconds.
-----Fuck, that's hot...
-----But no thanks.
-----You have fun, but try not to wreck her holes entirely. I'm gonna hit that the right way around soon enough.
--Dude, that's my sister you're talking about.
-----Yeah and she's one hot piece of ass

You toss Dana's phone aside, lift her off the couch, and carry her out of the living room.