Author's Note:
For those of you who were wanting a part 4, here is it. Sorry it took so long, real life got in the way. Hope you enjoy it.
*****
As summer turned to fall, I started college. Since I already had my license grandma Rosie let me borrow her car to get to and from school. We had kept up our nightly sessions, with me fucking her silly almost every night, and sometimes a quickie in the morning or afternoon if I didn't have class that day.
One day, after one of my professors hit us with a pop quiz, I headed home looking for the release that could only be found between grandma Rosie's legs. As I walked into the house I heard her voice coming from the den.
"... doing well as far as I know. If he wants to tell me, he'll tell me." she said. Must be talking to my mother.
I headed into the den and saw grandma sitting in her easy chair, dressed in a pair of sweatpants and a faded tie dye t-shirt. She smiled and mouthed the words, "Your mother". Then she turned her attention back to the call. "Yeah, honey, in fact he just walked in. Hang on."
She handed me the phone. "Hey mom."
"Hey kiddo," she said "How's it going? How's college life treating you?"
"Pretty good so far, I guess," I said, "Haven't been having any problems. I'm doing good in my classes. Getting around the campus is still a bit confusing. But other than that, it's fine."
"So, I have good news. My case is done."
Suddenly I felt grandma's hands on my legs. I glanced down and saw her hands going for my belt.
"Uh, that's great mom," I said as grandma Rosie got my belt undone, "Did you win?"
"Of course we did!" my mother said proudly, "It took longer than we thought, but we won."
Grandma unbuttoned my pants, pulled down my zipper and freed my now hard cock from my boxers. She stroked it a few times as she smiled up and me and then swallowed as much of my cock as she could fit in her mouth.
"Again, I'm not gonna bore you with the details, but that's not the good news. The good news is, I have four weeks of paid vacation saved up, and I'm heading down to spend all four weeks with you and grandma! Isn't that great?"
"Oh yeah," I said, trying not to moan in pleasure, as my grandmother started to give me one of her amazing blowjobs. "Sounds great."
"You don't sound too thrilled."
"Sorry mom, just had a really hard test." I said. (I'm also trying not to cum in your mother's mouth because she's sucking my dick.) I thought.
"So how's it living with grandma? You two still getting along okay?" mom asked.
"Yeah, it's great. Some of my friends think it's a little weird, others think it's kinda sweet." I said putting my free hand on the back of grandma's head and controlling the pace of her cock sucking. If I was gonna get through this phone call I had to make sure grandma wasn't gonna make me cum while I was talking to my mother, "Then again most of my friends are probably picturing a sweet, white haired old woman who spends all day baking and has 57 cats."
My mother laughed "Yeah, you grandmother is definitely NOT your stereotypical grandma."
"No she's not." I said looking down watching as my cock slid in and out of her mouth as I controlled the pace. She looked up at me, and I could see a devious twinkle in her eyes. "So when are you gonna be here?"
"In about a week." mom said, "I need to get things together on my end, and then I'll let you know for sure."
"Sounds good. Talk to you later mom."
"Bye sweetie, I love you."
"Love you too, mom." I said, "Bye."
I hung up the phone and looked down at grandma Rosie, as I kicked off my sneakers and pulled my clothes off. "You're evil."
"You handled that better than I thought," she said stripping off her own clothes to show off her magnificent body, "Now, I'm gonna finish what I started."
She went back to work on my cock, this time controlling the pace herself, using her lips, tongue and hands to tease me and bring me to the brink of orgasam before slowing down the pace and starting all over again. I reached down and fondled her huge tits as she kept sucking my cock. Just when I thought I couldn't take anymore, grandma stopped teasing me.
"Oh, fuck grandma... I'm gonna cum..." I moaned, feeling the familiar tingling in my balls.
Grandma Rosie pulled my cock out of her mouth and started stroking me aiming the head of my cock at her tits. I groaned and exploded shooting several strong jets of cum onto her firm tits. I took a moment to catch my breath as grandma scooped some of my cum off her tits and licked her fingers clean.
"I needed that." I finally said when I could catch my breath. "But what are we gonna do when mom gets here? I mean she's gonna be here four weeks. I can't go without fucking you for four weeks."
"Who said you have to?"
"Wait," I said, "Grandma you're not seriously suggesting...?"
"Why not? You're already fucking me. Why not your mother? You can't tell me that in all this time you've never thought about it."
She had me there. "Well, now that you mention it, sure I have. But, for starters she'd never go for it," I said picking my clothes up off the floor.
"You leave that to me." Grandma Rosie said, "I told you before, I can talk your mother into anything. Plus, I've always fantasized about another woman, and who better than my own daughter?"
"All right," I said, "So what's your plan?"