Over the course of the next week, Aaron was forced to serve as his cum dump. Each evening, Kyle would stomp up the stairs after eating enough food for three people, and without preamble, he would command Aaron to get on this knees.
The first time after the initial cock sucking, Aaron had tried to talk Kyle out of it, but Kyle only gave Aaron a look and said, “You can do did willingly or not. Either way my cock is getting serviced.”
But it isn’t your cock. It's mine.”
“It is for the next three weeks, and since you think its yours, what is the problem?” The argument ended quickly after that with Kyle grabbing Aaron and forcing him onto his borrowed mammoth genitalia.
By the end of the week, Kyle had gained a few more inches in height, plus Aaron knew he had gained some size to his cock and balls. It was Saturday of the second week, and Kyle after getting a early service from Aaron, said he was heading out to a party. When Aaron asked which party and who had asked him, Kyle responded, “Some party over by the college, this girl invited me a couple of days ago while we were standing in line to get coffee at the Starbucks down the street.”
At first Aaron was more surprised to hear that his brother had started to rink coffee, but as Kyle was heading out the door, Aaron finally connected the dots in full. A college age girl had thought that Kyle was also in college. Aaron until that moment had not even thought about the way the outside world was looking at Kyle. But thinking about it, Aaron could understand why someone would make that mistake.
Kyle was now standing at six feet and at least two inches. His shoulders were broad and his pecs pushed out from his chest like a rocky shelf. With eight highly defined abs, thick legs with thighs twice their original size; Kyle was force to swagger if he walked. His arms were also bloated with muscle, with biceps that could rise without any effort on Kyle’s part, plus he was forced to hang them at a angle because of his flaring back muscles. With a full beard, Aaron realized that Kyle could be easily mistaken for someone in his early twenties.
Aaron got the first hint of this when he and Kyle had gone out to buy Kyle some new clothes. One lady had mistaken Kyle for the older brother, and when Aaron went to pay for the clothes, the checkout clerk had given him a funny look. Now see his younger brother walk out the door, Aaron felt a chill run down his spine.
The only up side that Aaron had found along the way was his own growth. Over the course of the week, Aaron had noticed that he was starting to grow hair again, and on Wednesday, Aaron had even grown enough to shave. But it was Friday night, after Kyle’s daily deposit that Aaron first noticed that his new cock and balls looked a bit bigger. Upon measuring his smaller cock, Aaron found it had grown to seven inches, and his balls, while still not as big as the ones Kyle now had, were at least twice their original size.
For the next hour Aaron contemplated on this, and tried to figure out what was causing this growth. But it would be another day before Aaron would realize that the cum he was having to swallow daily was over saturated with testosterone and other growth hormones and his body was responding to these chemicals.