Mistress has been training me to take bigger and bigger plugs. And each time I've taken the next size up, she's praised me as her good boi. HER good boi! And, today, I've easily taken the biggest of the plugs, finally! Mistress makes a bet with me tonight, though (now that I'm the good anal slut and cock whore she's been training me to be!): if I can guess, at least once, how many fingers She's fucking my ass with, I get to put myself inside Her tight embrace!! But if I guess wrong three times, then I consent to anything - ANYTHING - that She wants to do to, and with, me! And ... I don't know which one I want more! Win the bet? Or ... lose it? Either way, Mistress wins, so that sort of means I win, too, right?? So, all that matters is that I serve Mistress right, tonight!