Mrs. Furgeson

You definitely want to play with all of the lovely female persons around you eventually, but your eye is drawn immediately to your mom's boss, Mrs. Ferguson. She's...well, she's special because your first wet dream was about her. Her big solid body and fantastic boobs were responsible (you think) in these formative years for your love of large women. Given your perspective from being "ten" again, she looks even bigger and you had often wondered what might have happened if she'd actually meant her flirtatious words to you. Well, now you finally have the chance to find out. You finish your cake and see Mrs. Ferguson look to you and smile in that shamelessly naughty way she sometimes did. Then she's coming over.
"There's that handsome young stud," she says, swooping you into her big soft arms and hugging you, enveloping you in her warm boobs and belly, "I'm sure some lucky girl has snared your heart by now."
"Nope," you tell her with false innocence, "not yet. They don't seem to like me much."
"The young girls have no taste," says Mrs. Ferguson, shaking her head, "If I were a little younger, I'd make you mine."
"I wouldn't mind that," you admit, "I like you."
"You sweet talker," says Mrs. Ferguson, planting a big soft kiss on your cheek, "tell you what. You don't have a girlfriend, I don't have a boyfriend. What say for today, you're my boyfriend, huh?"
"Really?" you say, playing the innocent card again, "gee, that'd be great. Any guy would be really lucky to have you for a girlfriend."
"Keep talking like that," says Mrs. Ferguson, sliding an arm around your shoulders, "and I may decide to make you mine for longer."
The two of you stroll about, "playing" at this relationship. Your mother, whose had a glass or two of wine, thinks it's highly amusing and so she raises no objections. Mrs. Ferguson is giving you a look that's oddly predatory and after a moment, the two of you decide to go on a "nature walk". As the two of you leave the site, she whispers to you that as soon as the two of you are hidden, she'll teach you how to kiss properly. Mrs. Ferguson punctuates this by giving your bottom a little pinch.