Iwao would blush as he heard a friend gave Otoya a dildo and he felt happy his little brother was asking him, he kept his arms wrapped around his little brother before speaking, "Do you want big brother to show you how to use the dildo and how to fap?" he asked knowing Otoya would eagerly nod and say yes to him. Iwao smiled, he actually felt better now that he stopped hiding things like sex from Otoya, it just meant he had so much more to teach his younger sibling and more time for Otoya to make a move. Iwao would grin as he began rubbing his shaft against Otoya's balls, he blushed as he heard his younger brother ask why that felt so nice, "Well... I guess when my cock is rubbing against your balls, it gives you and me a great sensation.. Kinda like how when I rub your chest and you feel calm..." he said before kissing his brother's cheek. Iwao finally ran his hands down and rubbed his younger brother's hardening cock, "Does that feel good?" he asked softly, he made sure to be as gentle as possible for his brother's sake.
Iwao finally got up and held Otoya in his arms as he sat on the side of the tub, "I guess now is a good time to show you how to fap..." he said as he kept Otoya in his lap, he blushed knowing his younger brother could now see how big Iwao was compared to himself. Iwao rubbed his younger siblings chest to relax him as his other hand gently wrapped around Otoya's hardening cock, by the looks of it Otoya was maybe 6 inches, give or take a couple of centimeters, while Iwao was 10 inches and much thicker then his younger brother. Iwao smiled as he heard his little brother start to moan softly, "Mmm... Just relax and let big brother handle it..." he said, he made sure to keep rubbing his thick oozing cock between Otoya's legs, and used his pre to slick up his little brother's cock as he stroked it to full hardness. Iwao would pump his brother's cock as he panted in Otoya's ear, "Now sense I am closer to the edge then you, I am going to show you first hand what cum is..." he said he grabbed Otoya's hand and placed it around his thick throbbing shaft, "Stroke me just like I am doing to you." he said. Iwao groaned as his brother did as instructed, soon Iwao let out a loud moan and shoot several ropes of hot jizz into the tub and some onto Otoya's legs, cock, balls, and abs. Iwao would pant as he bucked his hips, "That is cum.. It is also called Semen, Jizz, and to a lesser extent, man juice." he said through panting breathes. Iwao would watch Otoya squirm before moaning his older brother's name as he came all over Iwao's hand, he blushed as he kept stroking his younger sibling until his climax finished, "So how was your first time little brother?" he said happily, hoping Otoya would not be upset that Iwao did that without actually preparing him for the body shaking experience he just had witnessed and felt.
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