"No... Ah... I'm not gay... Ah! ❤" Dustin's denial and lust for his brother was tearing him in two as Ty nibbled his earlobe and kissed his neck.
"We'll see," Ty promiced with a wicked smile, and grabbed Dustin's bubble butt. His two middle fingers digging in right up against the femboy's tight ass. Dustin gasped like a maiden as he wad picking up in the strong single arm.
Ty carried the naked boy deeper into his privet BDSM dungeon. He dropped Dustin onto the large bed in one corner of the room. Then began strapping Dustin's armes together behind his back. Dustin waited with baited breath both fearing and longing for all the things this room promiced.
"I know you want to go straight to the hard core stuff, sis, but you're just not ready for that yet. You haven't earned it yet. But don't worry, we'll work our way up to it all but by bit." He kissed his bound brother again. "For now, these straps will do. Come." He lead the way out. Dustin obediently followed.
They went together into the training room. Seeing himself in such a state in the large mirrors that covered one of the walls was too much for Dustin. He had to look away before he got another hands free orgasm.
Ty locked the door behind him, then set to work pumping iron again. Soon sweat was once again rolling down his rippling muskulatur armes.
"Go on, sis. Start cleaning me." Dustin looked around for a towel, wondering how he'd help without armes free. Ty sighed and put the weights down for a minute.
"Like this." He grabbed Dustin's head from the back and shoved his face into his armpit. The warm wetness and overpowering musk nearly made Dustin faint. Without meaning to, he began licking the sweat off his brother's body.
"There you go." Ty let go and continued working out.
"No! Stop!" Dustin silently screamed to himself, yet he couldn't stop slurping at Ty's body. He attacked different parts of Ty's body with his tongue, catching each new droplet and bead of dweat that ran down Ty's body. As Ty continued to train, he gradually started ordering Dustin to remove one of his shoes and docks with his teeth, then lick them clean too. Then the other. Dustin ran his tongue fully under Ty's sweaty feet and between his toes and suckling on each toe in turn.
"Remove my pants and boxers," Ty ordered. Dustin obeyed eagerly. It took some work without armes, but he did it, and was soon sucking and slurping his way up Ty's thighs, then his balls, then finally his cock. The cock was massive. Especially for Dustin who'd shrunk so small. All resistance had faded from Dustin's mind at this point. There were no thoughts, just a need. He passionately licked all the way up from the base, to the tip. Precum awaited him atop and he drank it all, before trying his best to deep throughout the giant anaconda cock.
Ty finished his work out with one last activity. He lifted Dustin up mid suck and turned him upside down over his crotch and slammed Dustin down to the base and up again and again, as if Dustin was a cock skeeve. A dildo was shoved into Dustin's ass and weights were added on top. Every time Ty threw his brother rapidly into the air and down, the dildo would soar almost out before slamming all the way back in with heavy weights. Cum gushed down Dustin's through. But Ty wasn't finished.
Dustin was turned around and forced ass first onto Ty's monster cock. A towel was placed on his lap and weights were placed on them. Dustin's little feet didn't reach the floor, but even if they did, he wouldn't have been able to pull himself up off the cock now. Ty unstrapped Dustin's arms and handed him two light dumballs without any weights on them at all. Just the metal sticks.
"If you can lift them fully up just once before I do it 30 times with my two 20 kg ones, then I'll turn you back to normal." Dustin lifted with all his might. Ty had already completed 4. Then suddenly the penis inside him began to vubrate on its own. Dustin's arms dropped to his sides at the sensation. Ty was at 10 now.
Dustin tried again. Just before he reached it, the cock suddenly ballooned in size. Dustin gasped and his arms fell. Ty was at 20. Dustin strained. Almost there! "And 30, Ty said, dropping his weights. He was dripping with sweat again.
"Guess you stay like this then," Ty said and began fucking Dustin in urnest. The femboy began licking uo the sweat again as he was fucked. His long hair tickled his lower back as his bubble butt giggled at the vigorous pounding. Cum erupted inside him. Dustin was dropped onto a mat like some discarded cum rag. Ty examined himself. Clean as can be. Tongue baths were the best.