Bobby started to piston into her. He was on another plain as he watched his cock ruin his grandmother's butt hole. He couldn't believe it. He could see that she was loving it as much as him. He could occasionally feel her long nails brush him as she had a hand between her legs. "This was real sex. Hot nasty sex. Kim would never in her wildest dreams give me anything like this." he mused as he continued to wreck her now fully stretched hole. "Fucking hell Doris, I can't keep this up for too long, I'm too fucking excited.. fuck..I'm gonna fucking cum soon..god.."........ "Don't worry..just keep fucking.. I'm right there with you.. god this is so fucking good.." In only moments, Bobby felt his balls tighten, his cock grew impossibly fat and he started pumping a huge amount of cum into Doris's asshole. Doris squealed as she felt her grandson squirt his big hot load into her causing her to cum, which in turn led her to squirt her own ejaculate over the living room carpet.
"Fuck that was so fucking amazing grandma...fuck."
"Hmmmmm, it was rather fun wasn't it? We'll definitely be doing a lot more of that honey." Bobby's eyes lit up as he thought about being able to pump his grandmother's butt as often as he could. He glanced at his watch. He had been there for 45 minutes. "You better get yourself together honey. No, don't look like that. From tomorrow, we'll have lots of time together to do all sorts of lovely things. What time is Kim leaving tomorrow anyway?"
"I'm dropping her off at the train station in the morning, on my way to work." Doris watched him forlornly as he pulled his boxers up, wishing like him, that they had more time. "Ok, why don't you come here straight from work and I'll have your dinner ready."
"Ok, I'd better run. Take care." he moved towards her to give her kiss goodbye, before they knew it, their hands were all over each other, tongues in each others throats, making out like they were teenagers. Finally they were able to pull themselves apart and Bobby left the same way he'd cum in; through the back door.
Early Friday Evening.
Bobby drove home from work in a state of high excitement. He was doing his best not to speed, but was finding it increasingly difficult. Before him on the dashboard phone holder was his phone, its screen showed a picture that his grandmother had sent him just that afternoon. It showed her naked pussy being held open by her long middle fingers and the index of both dipping inside. It was the filthiest thing he'd ever seen. Also, it turned him on like crazy. When he'd received it at about 2pm he'd gotten instantly hard. Not the best thing to happen when your sat at your desk. This was followed a half hour later by another picture of her showing her huge tits covered in oil with a text saying; "I need your cock in-between these, badly." That's when it had became too much. Picking up a file, which he'd held in front off his embarrassment, he left his small office, telling his assistant that he'd be back shortly and headed to the bathroom. Almost running by the time he got there, he crashed through the door and into the cubicle. Suit pants and boxers on the floor, he alternated between the two pictures as he pleasured himself.
Doris was fairing no better. Not by a long shot. She'd never been this excited in her life. Sending those pictures to her grandson had been nothing short of liberating. She'd been texting him for weeks, but this was the first time she'd sent pictures. It had been a bit awkward at first, having to work out the delay on her phone because it would take two hands to open her pussy, but she had loved the effect and knew she'd screw with Bobby's balls. The tits photo she'd actually done first, but couldn't resist sending the pussy picture. They had been texting all afternoon and she knew what he was feeling. She, herself had taken the edge off three times in that time and was as desperate as he was for him to get home. She'd had to carry a handkerchief around ever since because her pussy wouldn't stop lubing. She was wearing the same lingerie and shoes as the night before, apart from the thong. She wasn't wearing one at all this time. At this moment in time, they weren't sure how long Kim was going to be away, only that she'd be gone until at least Tuesday. That was good enough for Doris. Any other time would be a bonus.
She heard the car pull into his driveway and she sat at her kitchen table, waiting for him to appear. In two minutes he came crashing through the back door, his shirt was undone to the waist but it was the look in his eyes that Doris was captivated by. He looked feral. Animalistic. Like he wanted to go absolutely nuts on her. He didn't say a word, just walked towards her, staring at her exposed tits, unzipping his turgid cock. She knew what was about to happen and welcomed it. By the time he got in front of her, his dripping cock was out, her mouth was wide open waiting. He still hadn't said a word as he grabbed her hair and unceremoniously shoved his cock into the back of her mouth. "This what a real woman does for her man, not like that prissy bitch he married." she thought as she brought her hands up to his ass and pulled him into her throat, and she had no intention of letting him out until he'd deposited that first load down her gullet, which she didn't think would be too long at all at the rate he was going. Doris was really proud of herself. She was used to men being men around her. But to be the reason that this young, virile 23 year old man had practically lost control and just had to come in and take what he wanted was beyond words. It was a fucking total turn-on, that's what it was.
Bobby was by now out of control. He was holding Doris's head with his left hand and had reached down to pull on her her right nipple with his right. As far as he was concerned, she was nothing but his cum bucket and that suited her just fine. More than that she was fucking loving it. Even though her make up was now a complete mess, drool and pre-cum running out of her mouth onto her fat tits, Doris was in heaven. Within three minutes of walking in her back door, she felt the first spurt of his cum hitting the back of her throat and he didn't slow down until he'd finished.
He let go of her hair and nipple while she nursed on the end of his semi erection, coaxing anything that was left over. "Wow nan. I'm so sorry. I didn't mean to be so rough with you." Doris gave him one last long suck before she removed him from her ministrations.
"Oh baby. You've no need to apologise to me. I loved it. I really loved it. Your a man and you acted like one. I want you to always be a man around me. If you want me, then have me. I'll always be ready for you baby. You don't need to be horny around me and let it go unsatisfied. I, for one, wont ever turn you away. Your my grandson after all." Doris was satisfied with her little speech. It had let him know for sure, if he wasn't before, that she wasn't like his wife. If he was horny, then she was there for him. "Now why don't you go and shower and I'll get dinner heated. Don't eat too much though, I might have something else that I want you to eat."
"Sounds like a plan. I really need to run back to my house for some clothes. I've only got what I'm wearing."
"Well, I suppose you could honey. But you only need your boxers this evening and trust me, you'll be naked in my bed. So what other clothing do you need? You could run round in the morning."
"Ok, boxers it is. Won't be long."
Doris busied herself with dinner. She didn't have much to do. She'd made something simple and quick. She hadn't wanted her first night to be spent cooking. She had other ways for them to be occupied. Doris couldn't of cooked something complicated even if she had wanted to. Her mind was on the fit young man in her shower. She was really tempted to go up there and just watch. Just thinking about him in there sent shivers down her spine. Setting up sitting places opposite each other, she opened the fridge and poured wine for her and a beer for Bobby. He was back in the kitchen within twenty minutes.
Once they'd eaten, Doris cleared away the plates and returned so they could finish their drinks. "So Bobby, how long ago did you decide that you wanted to fuck your own grandmother..Hmmm? And don't give any crap about since you moved in.. I do know better."
"Oh, Ok. Its been about five years I suppose. It was when I was just past my 18th birthday and I saw you sunbathing outside. I was spying down on you from my bedroom window."