Right on time, Luther walks right through the door.
"Russell? Where are you?," he says, as he walks to the couch and sits down. Right before he looks straight at you, you turn the flashlight on. In an instant, you feel as whatever the Anthro-Slob Light is pulls from your desires, and you hear Luther shriek "Hey, wait, where's- who-" before his eyes roll into the back of his head.
Within moments, you see as he begins moaning, his body quickly packing on the pounds, Luther's new belly tearing his shirt clean off. His penis quickly grows erect, clearly deeply aroused by the depths of his personality morphing into a slob. As his thighs begin transforming, he begins moaning deeply, quickly turning into a long, deep belch that echoes throughout the apartment.
If you weren't so horny and intent on watching his transformation, you would've started masturbating as you began letting out a sonorous fart, the sound of which seems to motivate Luther's transformation even further.
The tip of his penis is the first part to transform, and as it ripples down, a sheath forms, until gradually enough of him transforms for you to recognize, he's turning into a snow leopard.
He begins panting as more and more pounds pile onto his frame. You watch as he gains a second, and then a third, and fourth, chin, as his fur ripples up his torso and his face rapidly morphs into a cat's muzzle. Fuck... he looks sexy. You finally have the tenacity to begin pawing at your own cock, awakening it from its sheath.
Becoming a snow leopard, he doesn't grow a mane like yours, but your new twisted mind is happy with this, the mane should be reserved for the king of the pride. Surprisingly, Luther suddenly bursts off of the couch, the floor shaking violently as the absurd amount of weight crashes onto it.
You keep masturbating further as the fur spreads onto the back of his body, and when it reaches his buttocks, an enormous fart bursts out, along with a tail that reaches a length of a couple feet fairly quickly. It quickly packs on a lot more fat than your tail possesses, but as Luther's transformation seems to finish, he stammers out, "Russell... I need you..."
Upon hearing your husband's request, you promptly feel the need to plant your penis in his asshole. As you do, his tail wraps around your enormous gut, and begins shaking it. You feel your stomach jostling around, which makes you aware of how hungry you are, strengthens your arousal, and leads to another enormous burp.
After a few moments, your seed bursts out, wave after wave, until you fall on your wide back, barely adjusting your tail out of the way, still needing to get used to having one.
After both laying on the ground for a few minutes to rest, Luther begins getting up. You watch as strings of your thick, filthy cum connect your dick, buried deep in your swaths of fat follow his behind upwards, his haunches highlighting just how egregiously fat you've made him in the past few moments.
His tail swishes through it, joining many of the strands, and bringing them to his hand. He wraps the thick seed into a ball, before saying, "God, it stinks. What did you do to me?"
A moment of fear shoots through your mind, before he chomps down on it, and you realize he has become just as perverted as you. You sigh internally, glad that taking the plunge and corrupting someone who's been a kind friend to you despite your perversions for years went as well as it has. As he munches on it, the strings of cum gradually get pulled towards him, and he keeps eating until they've all detached from you and he's devoured all of them.
"Fuck, I had something I wanted to talk about when you told me to come over, but I saw you and just felt overtaken with lust. How have you been," Luther says while laying down on the ground next to you.
"I've been better. I'm so glad to have you by my side once more. You stink like no other man can," you say as you massage your husband's new oceans of blubber.
You begin making out with your new husband, your new mouths making the situation interesting and exciting. After a few minutes, you hear your stomach growl, and realize you need another several thousand calorie meal for lunch. Luther's does the same, and he says, "So, Russell, what's next?"
As you begin thinking about your options, you say, "Love, don't you think Russell's not exactly a name befitting such a noxious king like I?" You promptly let out another egregiously smelly belch, which morphs into a sonorous chuckle.
"Right! I think you're far more of a Rusty, especially with that gorgeous, slobby red hair and body of yours." He shakes your gut, and you decide the best course of action is...