Thanks to everybody who has voted and especially those of you that have commented. The amount of stories I churn out correlates roughly with how much feedback I get.
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I was down to 162 points and when my grandma asked, I sort of half-heartedly agreed to spend 100 of those for my dad. My wealth of points seemed to be evaporating. We played scrabble most of the day but luck seemed to be against me and I hardly gained any ground.
After dinner my mom and I watched as my dad's hands roamed over his mother's naked body while she stroked him.
He didn't touch her pussy, and when he was close to cumming she aimed his cock at his own chest rather than hers, all of which secretly made me a little happy.
That night she came to my room again, this time completely naked. We kissed passionately and my hands squeezed her side and her breasts. My cock twitched as I pressed it against the naked flesh of her hip.
"You can buy anything you want." she said panting.
"What?" I stammered, my heart skipping a beat.
"You can buy anything you want," she said again, "We'll use the same prices you and your mom do." She rolled me onto my back and reached down, slowly stroking my cock. "So what is it you want?" She leaned down, and cradling my dick, she placed a slow wet kiss on the shaft.
". . . I only have 72 points left," I groaned.
She looked up at me and grinned. She straddled me and leaned forward, pressing her giant naked breasts against my chest. I could feel her pussy rubbing against my throbbing cock.
"I'll tell you what . . . " she whispered, "If you promise to come visit me over spring break . . . we can do away with the point system."
"Wait . . . What?" I asked panting.
"If you come visit me over spring break . . . you can have me until I leave," she moved her lips close to my ear and whispered "however you want," as she slowly rubbed her body against mine.
"Oh god yes Grandma," I said. I wrapped my arms around her and grabbed her ass, pulling her even tighter against me.
"You'll come visit?" she asked breathing heavy. I nodded vigorously.
She let out a gasp as I rolled her onto her back and mounted her. I kissed her for several seconds, her massive breasts brushing against my chest. I lowered my hips until I could feel he tip of my cock pressing against her pussy. Then I pushed into her.
"Oh god baby," she said. Her pussy was nice and wet. I held my cock inside her and kissed her again. She wrapped her legs around me and pulled me closer, smashing her breasts between us.
I slid in and out of her, slowly at first and then faster. "Oh David, your cock feels so good," she said.
It only took a couple of minutes before I could feel myself getting close. I tried to hold back, but it was no use. "Oh Grandma, I'm gonna cum!" I said, pounding in and out of her.
"Cum for me baby. Cum for Grandma," she said panting. I leaned down and kissed her lips and, after a few more quick thrusts, my cock twitched and started to spray semen into her pussy.
"Mmmm . . . " she moaned as I rolled off her and collapsed onto the bed.
"That felt amazing," she said, giving me a peck on the cheek. I reached my arm around me and pulled her warm, naked body close to mine.
The next day I woke up with a stiff erection pressed into the small of her back. I tried to relax but it twitched involuntarily.
"Mmmm," She said. She shifted a little and reached back, loosely wrapping her hand around my cock. "What does your cock want this morning?"
I leaned my head close to hers. "Can I fuck your tits Grandma?"
She rolled over to face me. "Is that what you want?" she asked, raising an eyebrow.
"Uh-huh," I said nodding.
"Alright," she said smiling, "how do you want me?"
"Just on your back, I guess." She pushed the covers to the side and then laid down. Her huge breasts shook back and forth for a few moments before coming to rest. I straddled her rib cage, my cock laying between her massive tits. She pressed on the sides of her tits, pushing them together and enveloping my cock in their soft flesh.
"Oh god . . . " I groaned.
"You like them?" she asked, smiling up at me as I started slowly thrusting in and out of her bosom.
"Oh Grandma, your tits are amazing."
"Yeah?" she asked, her body shaking from each thrust I gave.
"I wanna cum all over them," I groaned.
"I bet you do," she said with a smirk, "Tell me when you're getting close."
I bent forward a little and gripped the headboard, fucking her tits faster.
"Your cock's very nice you know. I'm glad you got to use it on me last night."
After several minutes my breath had become seriously ragged.
"You gonna cum baby?" she asked. I nodded, panting.
She slid out from under me a little and sat up against the head board. She grabbed my cock and stroked it. She reached her left arm under her breasts to make a shelf and squeezed her breasts together between her hand and her bicep.
"Cum all over your Grandma's tits," she said looking up at me and aiming my cock directly at her breasts.
I couldn't take it any more and I let loose a spurt and then another and then another across the tops of her breasts.
"Oh fuck Grandma . . ." I groaned as I finally went limp and slumped over onto the bed. "Jesus," I said, just panting and staring at her cum covered tits.
"I'm gonna take a shower," she said. She leaned over and pressed her mouth against mine. I felt her tongue flit across my lips and her breast press against my arm. She broke off the kiss and looked down at my now sticky arm.
"Feel free to join me," she said with a smile.
A couple of minutes and a little mutual washing later I was rock hard again.
"What do you wanna do now?" she whispered in my ear, her big soapy breasts pressed against me as she slowly stroked my cock.
"Do you maybe wanna give me a BJ?" I asked. She just continued to slowly stroke me.
"Be more forceful," she whispered close to my ear, "The deal was you get whatever you want."
I took a deep breath. "Suck my cock Grandma."