Give Him an Inch or Two More.

"I'll help you out, if you give me first dibs, Heilus." You say this with a smirk on your face, grabbing hold of his shaft and slowly jerking it's skin up and down languidly. "Let's get down to business, right? All this measuring has got me really horny." You can really feel the difference in size while jacking him off, the extra inches allowing you to work the shaft more expediently. You rest your head on his small thigh, gazing almost lovingly at the cock you're working over.

"Damn... Stephan... you're so good at this... H-here." He hands you a tiny vile of what you extrapolate is more of the growth serum. "Same as last time, just swish it around your mouth for a little bit." You gulp down the vial, doing as he asks. "I'm going to suck you fucking dry, Heilus. Hope you're ready." You start to jack him off faster, pre cum spurting from his respectably sized cock, before moving your mouth over to the tip of his dick to lap it up. You move your tongue deftly across the smooth skin of the head, eyes lidded in comfortable leisure. You take a bit more, deeper into your warm mouth, lapping at the loose skin on his cock, tracing over the veins newly formed to pump blood.

"I don't think I'll ever get used to this." He says.

"I don't know about that, Big guy. You've only had this dick for a few hours." You say, pulling off his dick with a bit of a snicker. You move your attention down to his balls, bigger than last time just as his cock. You are still able to suck them both into your mouth, but it's apparent that it's a bit more difficult. You get to smell the crotch scent better down here too, a rank smell that sticks to your nostrils.

You fall off his nuts, back to his cock, and throat it down to the root. You feel it hit the back of your throat, unlike last time. You slurp and suck further, drawing out another orgasm from your friend.

"Ah!" He exclaims, hand on your head gripping in pleasure. The back of your tongue splashed with the taste of cum.

"You taste good, Heilus." You pull off, saliva strings connected your mouth to his dick. You wipe your mouth, breaking them off.

"Guess I've got to work on my stamina, sorry for the quickshot, Stephan." He states, head up towards the ceiling. Head still up, he speaks unexpectedly. "Did you want to do something? I'm kind of hungry. I'll close the shop for a bit."