"Hello young man, how's your bear costume?" greets the same store clerk as you enter The Second Skin. "Well, actually, I gave it to my friend, and he is very happy with it." "I'm glad to hear that," says the clerk, "how may I help you today?"
You ponder. Do I really want a bear costume? "Well, I'm looking for a costume, for myself this time." "I see, another bear one, perhaps?" "Yeah, why not, he's very happy with it, I'm sure I'll like it too." "Very well." The clerk smiles. "Which color would you like? We carry black, dark gray, chocolate brown..." "That one!" "Yes, excellent choice, that's my favorite too."
With his help, you load those three heavy crates and drive back to the cabin as fast as you can. "Hey Jack, I'm back!" "Did you get a bear suit?" "Yeah, help me unload!" In the crates, you find sexy dark brown bear costumes. "Ohh, brown eh?" "Yeah, help me wear this." The feeling of the costume is incredible on your bare skin. As you wear the top half of the costume, you feel your body grows taller and fatter. Jack gently puts the bear mask on your head, and you become a tall and fat bear, but a few hundred pounds smaller than Jack.
"You are all set, let's get it on!" Jack turns around and sticks his butt out to you and you fuck him like crazy. After you both shoot the load five times, you fall asleep but Jack starts eating the special food again.
You both have lost track of time. Jack continues to eat, and you continue to fuck each other. You sometimes eat the same food with Jack but your main interest is always his fat furry ass. Jack is getting heavier and heavier and you feel his big belly get softer and wider each time he fucks you.
One day, you realize the dog food bags are almost gone. You bought 30 bags, but now they are down to five and all bottles of weight gain formula are empty. Shit, that's almost 1000 pounds!? You turn your eyes to Jack, who is still guzzling the food. He is enormous. Taller than before (you estimate 9 feet), his chest and belly touching the ground and spreading slightly. Come to think of it, he hasn't fucked me for a while, he must be too heavy to mount me... Actually, can he even move? You get scared but aroused at the same time.
"Hey, dude..." you say in awe. Jack moves his head up from the feedbox filled with dog food and tries to turn back to you - he can't. His neck is too thick and the fat gets in the way! "Um, Jack, can you move?" "Huh? What?" "Just come to me, will you?" Jack starts - tries - to walk down to you, but can't. "What the hell? I can't move? What did you tie me up for?" "I didn't. It's your... belly." "My what? What are you talking... OH MY GAWD!" Jack finally realizes how fat he is now.
"Wha... how... what..." Jack is panicked. "Chill, Jack." But you don't know what to do either.