You can think of a few ways... [Ending B2]

"I didn't mean it like that, honestly."

"Really?"

"Yeah. If I can be honest with you, if it doesn't sound too bad of me to say, but when I met you this morning I thought you were Claire's mum. And it looked like you weren't wearing a bra but your urm... things-" You look at her C-cups sitting firmly under her lycra top and sports bra.

"My tits?" she says, and cups one in her spare hand and gives it a squeeze.

"Yeah... your... tits, look really firm."

"Well, yes, I have to be honest, they are one of my best assets."

"Yeah... they look pretty... nice," you say. At least with the support of a sports bra, but you wonder in real life if they're really that firm.

"Well, do you think they're nice enough to make a young man like you excited?"

"Yeah! Definitely!"

"Well... it doesn't look like it," she says waggling your slightly hardening cock in her hand.

"Maybe if... you know... I could see them or have a little play it would work better."

"No, we can't. That's not right, you're dating my granddaughter."

"Well... I just mean to get my cock hard so we can measure it properly."

"I see. So you think that will make you stiff then?" She says giving your growing cock a slow tug.

"Yeah, for sure."

She pauses, uncertain, but then shakes her thoughts away and takes your hand and places it on her tit.

You can't believe she's actually letting you grope her tits! You tentatively squeeze it then slowly cup the entire breast in your hand.

"Ooh, very gentle," she says, and then gives your cock a couple of strokes.

You take a tighter grip of her tit, and it feels firm and springy between your fingers. You cock is definitely on it's way to full mast, better see if you can get a bit more before it does.

"They're nice," you say. "But maybe... if I could put my hand under...?"

She pauses, "Okay, I guess if we want to get a good measurement, we need it nice and hard right?"

With out wasting anytime you reach down her top and inside her sports bra and pull it away from her chest as you delve to try and get a glimpse of her nipples. Peering down you catch sight of her full round pointy nipples, then your hand closes around the smooth bare skin of her breast and begins to knead it.

She continues tugging gently at your rod, as you thumb finds her nipple and strokes back and forth over it. It feels round and full, her areola isn't flat, maybe it flows into her nipple nubbin - you'd love to get a proper look at it.

You dick has become almost fully engorged as her hand runs up and down the shaft.

You pull your hand out form her top, grope down over it then try to go in from the bottom, as you do you make sure you push both layers clear of her C-cup which bounces out - to your surprise it's firm and her nipples are perky puffy cones. You tweek her nipple and grope at her bare breast. Kneading it in your hand her puffy coned nipple then pokes out proud from between your fingers.

"Woh, easy tiger," she says pulling her top back down again. "Let's not get carried away, remember you are in a relationship after all. And look I think you're there now."

Your man-rod is fully hard now and throbbing in her hand.