Look at my magnificent ass, little man. Look how round, curvaceous and beautiful it is. Do you know how much work it takes to keep in this kind of shape? Silly, I know you don't, because you've really let yourself go! I know you've noticed that we haven't been having sex lately, and truly, it's because I'm not attracted to you like this! You've gotten so tubby! You expect me to fuck someone that looks like you when I look like this? No, no. But don't worry, hubby, I have a solution: I found you a gym trainer. Well, more like a Gym Master, because he's a strong, kinky man that will be putting you through your paces to get you fit for me. Now, I know you're not into men, but to motivate you, being his little sex toy will be a factor in your training. You don't want to suck his huge dick and ripe, big balls? No problem - get fit faster. Until you're in shape, you'll need to suck his cock and open your tight ass for him after he works you out. Just think about how sweaty and musky he'll be after he works you out. You don't want to serve a Master like that? TOO BAD. As long as you're my chubby hubby, you'll take that dick, and I'll be getting satisfied by other men!