As Jason sat on his bed, which he had only barely managed to crawl to after 10 minutes, he heard his phone ding. Reaching for it, he was disappointed when a fat cockhead smacked onto his nightstand, sending a brief wave of physical sensation arcing up his arm, dissipating into his body. He grunted in frustration rolling over and attempted to sandwich the phone between his two "fists", which met with failure as they simply had no structure or solidness to grip with. Suddenly, an idea dawned on Jason. If he could make his arm-cocks hard, then he could use them to pick up his phone. Shuddering at the thought, but seeing no other way, he began dragging the shafts across his sheets, their sensitivity making him gasp. Slowly, he felt them begin to throb and stiffen, gaining in length and girth. After a minute or so, they had reached what he guessed to be full mast, each one about 18" long and about 4" in diameter. Just as Jason was about to squish the phone between the fist-cockheads, he felt them give a small pulse, and a drop of precum drooled out from both of their slits.
"Eww... That's nasty..." Jason said out loud as he managed to pick up the phone. Just as he did so, however, he received another notification, causing the phone to vibrate in his grip! He moaned as the shock he felt caused him to drop the phone on the edge of the bed and pull his arm-cocks away quickly as they both shot out another flow of precum, partly covering the phone and the nightstand. "Damn it!" Jason shouted.
All this attention had other effects on his body as well. His legs and main cock both began to throb as they engorged with blood, coming to semi-hardness from the arousal he was feeling. Jason was hit with a wave of light-headedness as hormones flooded his brain, and he began to run his cock-arms over his body. "I shouldn't be doing this, but it feels so good!" Jason said to no one in particular as he masturbated what used to be his arms. As he grew hot with desire, his other three cocks became hard and turgid as well, as he could feel his heartbeat in all five as they throbbed.
"Oh Gawd......" He lolled off as he stroked his arms against each other, the blanket, whatever he could reach! He just had to get off; he had to! Jason felt the tension building like a pressure near his elbows, and he guessed this must be their orgasms building. As he stimulated his arms, this tension grew and grew, as well as the pleasure. He gave one loud moan before sweet release exploded from somewhere deep inside him. His arms throbbed powerfully as ropes of cum erupted from their tips, splattering all over his bed. Jason groaned in ecstasy as another potent wave of cum escaped from his arms, splashing off his sides and blanket. Trying to reduce the mess he realized he would cause, he tried to sit on them as they produced yet another flow of cum, so thick and voluminous that he could feel it travelling from somewhere inside him, through his arms, and spurting out the tip. His other three cocks didn't quite orgasm, but they felt on the verge of it and leaked precum copiously.
As his orgasm wound down, Jason gave a contented sigh as he basked in the afterglow of this new kind of orgasm. He felt heavenly, like he had just run the worlds longest race and won, like he had- What had he just done?! Jason bolted upright as he looked around the bed in horror. His entire blanket, especially underneath him was simply soaked in his seed.