I love Jack. He is always there to make me laugh and to have a shoulder to cry upon. I won’t lie, I have thought about him in a sexual way, but I st...ood by my ‘Men and Women can be friends’ theory. Or at least I thought I could. I treasure his friendship. Jack and I have plans to go for drinks after we exercised, that was until Jack noticed the new aerobics instructor. He zeroed in on that Blond bombshell the moment we walked through the club doors. He said he thought she was ‘pretty hot’. Even. Sarah was unbuttoning his shirt, her hands caressing his chest, tickling his nipples. She bent over and locked her lips to his, and their tongues battled passionately. He felt Tammy fumbling with his belt buckle, and raised his hips as she slid his pants down. "Ummmm, that's a nice big one, Sarah. Can he do us both? Think he can handle two mature cunts?" She had a hungry look of desire on her face.Sarah straightened up and answered "He can get it up all night, Tammy. Again and again. And he. I then quickly pulled my shorts off, letting my hard dick swing around. I was gifted with a good sized cock. I wrapped both hands around the hard shaft, thinking there's still enough for Jessica to wrap a hand around too! Then I thought, Yep, I'm about to jerkoff, thinking about how sexy my Stepmom is!! I worked my cock hard, as I shot my load thinking about Jessica! For the next few weeks every time I would jerkoff, I was thinking about Jessica, my Stepmom! For those few weeks I was paying. Now it was time to do what they'd agreed on -- switch girls and fuck another time or two."Do you girls want to go again but switch with us?" Hal asked as he looked into Beth's eyes to see her reaction and then looked over where Larry and Susanne had just finishing have their fuck, too."I'm still horny and I want somebody to do me good again," Susanne said without even waiting to see what the other girl would say."Yeah, I'm OK with that," Beth said as she let Hal slide his cock out of her pussy.