Stepsister's 7 Squirts for Christmas

It's days before Christmas when my stepsister corners me in the hallway, all fake-casual while she asks if I got her something. Fuck yeah I did. Matching red and white lace lingerie - the kind that barely covers her tits and leaves her ass completely exposed. Later that night she steps out of the bathroom wearing nothing but my gift, doing this slow little spin while my cock gets harder than it's ever been. She's smirking when she catches me staring, knowing damn well she's won whatever game this is. Then she's on her knees before I can process what’s happening, her fingers wrapped tight around my shaft, bringing me right to the edge and then backing off every single time I get close. The little tease keeps that smirk the whole time, listening to me beg while my balls ache. She ruined every single orgasm I thought I was going to have, sending me to bed frustrated and throbbing. Christmas morning comes around and she’s got nothing wrapped under the tree, just a wicked little grin as she pushes me onto the couch. She climbs on top and starts working that tight pussy up and down my length, slow and deliberate, making me watch while she gets herself off over and over until she finally loses control - her whole body shaking as hot liquid sprays from her pussy all over my cock and thighs. Christmas got a whole lot wetter after that.