'Yes! Fill mother's pussy with your hot spunk!' she cried. 'Shoot it all into me!
Give me all of it! I love it,' she screamed as she felt his cock giving a final twitch.
But Mark's cock was still hard and still slamming in and out of her ass. He pulled her over and off his brother's cock, and then in a move that surprised her, jerked his cock out of her ass and rolled her over on her back.
He lifted her legs and placed them on his shoulders, bending her nearly in half and lifting both her cunt and her ass completely off the bed. He positioned the head of his cock against the opening of her ass, which was winking involuntarily at the contact, wanting to be filled with his cock once again.
'Tell me what you want,' he teased.
'Your cock!' she cried. 'I want your cock in my ass! I need it!'
'Beg.'
'Mark, please, fuck my ass with your cock. Shove your cock into my ass and fuck me! I want it! I need it!'
'Then you got it,' he told her, ramming his hips forward with all his might, driving his cock in to the hilt.
Susan screamed and nearly threw him off of her as his cock invaded her ass, so intense was the pleasure. She couldn't move, bent double as she was, but she had no real desire to. Mark's body was propped up on his hands and his hips slammed into her with all the strength he could put into it.
'Yes! Fuck me! Oh, fuck my ass!' she cried, nearly babbling as her hands tried to grab his hips and pull even more of him into her burning, churning ass.
Right then she wasn't thinking of Dave, the marriage or of Keri. All her mind could handle was the cock drilling in and out of her ass and causing one climax after another to erupt in her cunt.
'Take it! Take it all!' Mark cried, shoving his cock into her and rotating his hips in circles, which caused his cock to do wild things inside her ass.
'Cum, Mark! Cum in my ass!' she yelled. 'Fill mother with your hot cum!'
He bent his head and sucked one of her nipples just as his cock unleashed his load of cum, filling her with a load as hot and as large as the one he had shot down her throat earlier. Over and over she could feel his cock jerk and twitch in her ass as more gobs of his cum shot out of it.
Her own orgasm gripped her, ripping at her guts. She screamed and lifted her ass higher off the bed in an attempt to take more of his cock, wishing that it were twice as long and thick as it was.
Gradually, the two of them began to relax. Mark slowly pulled his cock from her ass, letting her legs fall weakly to either side of his body as he leaned down and kissed her gently. He then rolled off of her to lay on her right side, with Steven on her left.
'I'm going to miss this,' she said after a few minutes when her heart rate had returned to normal.
'You know, Mom,' Steve said, raising himself up on one elbow to lookdown at her,
'we may not have to end.'
'But…'
'Wait a minute. Have you ever taken a good look at Keri? That girl is a walking sexpot, and she knows it. She's got half the guys in school walking around with hard-ons. I'll lay odds of a thousand to one that Dave is fucking her, and if he isn't, he should be!'
'You'd like to fuck her, wouldn't you?' she asked with a smile.
'Hell yes! If I ever got a chance to, I'd try to wear that pussy out! But I don't see much chance of that happening.'
'Why not?'
'She goes with Chris Marken,' Mark told her. 'He is `Mister Wonderful' around school. Head of his class, captain of the football and baseball teams, and, according to most of the girls, the best-looking guy in school.'
'So,' added Steve, 'if she is fucking him, and her dad, which I happen to think she might be doing, she might be completely satisfied. Then again, who knows, we might just work something out which would be great for all of us.'
'What makes you think she's fucking Dave?' Susan asked, as she had not seen anything, other than the sense of possessiveness that any daughter would have for her father.
'Haven't you seen the way she looks at him? Every time she does, you can see the lust and hunger in her eyes for him. Not only that, I've seen the way he looks at her when she's unaware of it, and if he isn't fucking her, he sure wants to!'
'What about you, Mark? Feel the same way?'
'Well, Mom,' he said with a grin, 'she isn't you, but she definitely turns me on.
She has the most beautiful ass I've ever seen, and I've had dreams about what it would be like to get her on her hands and knees and fuck that tight butt. And, let me ask you something,' he said with a wink at his brother.
'Sure, go ahead.'
'You've never said so, but I have a feeling you just might enjoy a shot at her yourself, wouldn't you?'
Susan was caught off guard by his question and could feel herself blushing deeply as her two sons looked at her. 'I… I don't know what you mean,' she stammered.
'Sure, Mom,' Mark replied with a short laugh. 'Look, I have seen you eyeing her tits before, and watching her tight ass when she walks out of the room.
'I think you would love to see if her cunt tastes as sweet as you imagine it might, and would love to see her platinum blonde hair spread out on a bed as you sucked her off, or had her do the same for you.
'Face it, you want to get it on with Keri, and that's cool! In fact, it just might help the two of you to get to know one another better and reach abetter understanding with each other.'
Susan, despite her weak protests, realized that what her sons were saying was true. They had hit the nail right on the head with their comment, as she had wondered about how Keri's pussy would taste and had imagined the blonde with her head buried between her own legs.
She had told her sons about her one encounter with another woman, which had happened while she was in college, letting them know that she had enjoyed it, but that she enjoyed cocks a hell of a lot more. She had not found another woman she had felt like being with, even for a one-night stand.
But the more she thought about petite Keri, with her large full tits, her wisp of a waist, and that cute rounded ass, the more the idea appealed to her. She looked at her sons and smiled. 'You know, boys, you may be onto something here.
'We all know that Keri seems to be reluctant about the wedding between her father and me, and she hasn't exactly been overly friendly towards the two of you, either. But what if we were to invite her over, just her, and go to work on her?'
'Nope!' said Steve, surprising her, as she figured he would jump at the chance to fuck Keri.
'Why not?'
'Just you and her. With me and Mark she would be too nervous, but with just you she wouldn't be on guard so much. You just might be able to seduce her. Take her shopping, out for lunch or dinner, then bring her back and go to work on her yourself.
'As much as I would love to stay, as would Mark, we'll take off for the day, go to a show or something, giving you all the time you need with her. You are the one who has to win her friendship and confidence.
'After all, after classes are out this year, I'll be taking off for Europe, and that's only a few months away. Mark will still be around, but with just him it may not be so bad.
'But you are the one she is really going to have to learn to like and trust, as you are the one who is taking her dad away from her, or so she feels. You'll have to find out if she is fucking her dad, and if so, let her know that you don't plan to kick her out of his bed, but are willing to share him with her, just as he will share you with us.'
'You're right. I'll call her tomorrow,' she said with a grin, fondling both their cocks, which were starting to grow stiff again. 'But for tonight, I have a couple of other things in mind.'
'What about Dave?' asked Mark.
'We talked earlier and he said he needed to spend some time with Keri, talking to her about the marriage, and asked if I would mind if we didn't see each other tonight.'
'You don't mind not being with him?' teased Steve.
'What do you think?' she asked as she sat up and lowered her mouth over his cock, taking it all in one gulp.
