She backs out...

"Mom, I can't!" she cries.

"It's ok, dear. Just stroke it, I know you'll like it." Your mom encouraged her.

"Wait, mom. " you butt in. "Maybe you should do it, just to show her it's ok."

"Your mom is a little surpsised but quickly agrees. In no time at all, she is completely naked. There is absolutely no doubt where Kate inherited her voluptous breasts from - Mom's breasts were even bigger and yet sagged only slightly.

She confidently walks up to you and begins stroking your hard cock. "See, honey. Its alll ok."

Kate is still hesitant and you take that as your cue.

"Maybe we should do more to get her relaxed, mom" And, without any warning, you begin kneading and fondling her mountainous breasts.

Your mom is a clearly shocked at the turn of events, but let's you grope her breasts without protest. After several minutes, she finally says smoething.