Pedro couldn't wait another few days until Erik came back. Pedro really wanted to cum and he figured he could do anal himself. Pedro's cock was still locked of course and he almost cummed anally last time he met up with Erik. Pedro decided to go to a sex shop earlier in the day and bought a small dildo. On the way back, he realized he didn't buy lube but thought his spit would be good enough.
Pedro walks upstairs and locks himself in his office. He opens the package hurriedly and grabs the dildo. Pedro feels it's made from the same material as the one Erik used on him. He quickly undoes his belt and pulls his pants and boxers down. His small pink cage is still on and his balls look bigger than when he first put it on. Pedro still hasn't trimmed or shaved his pubes and they are still all over the place.
Pedro prepares the dildo by putting it inside his mouth. He tries getting as much saliva on it as possible to get it lubed up. Pedro now takes the dildo and starts rubbing it against his hole. He feels the cold spit rubbing against his hole and pushes in a bit. This dildo was just as long but not as girthy as the one from before. Pedro has an easier time putting it in and can feel it inside himself. Pedro tries to move the dildo to replicate the same movement as before but it's not the same. He has trouble moving it around because his buttcheeks are too thick and the dildo too small.
Pedro tries sitting on the dildo but now he can't move it around inside himself. This didn't seem as fun as when Erik was here. It just wasn't the same. Pedro was disappointed he couldn't get the same pleasure from himself and put the dildo into a desk drawer.
***A few days later***
It was now a week since Erik and Pedro last met. Pedro was waiting for Erik to text back. This was the longest Pedro ever went without cumming in his life. Pedro even started to wake up with precum wet spots in his underwear.
Erik: Sup
Pedro: Hey!
Erik: Are u free today?
Pedro: Yeah
Erik: Ill be there in an hour
Pedro: Are you bringing the keys?
Erik: What keys?
Pedro: Cock cage keys
Erik: Oh! I forgot to bring them
Pedro: seriously?
Erik: Yeah
Pedro: ....
Erik: Ill be there soon
Pedro felt like Erik didn't bring the chastity key on purpose. Erik showed up to the frat house later than he said, just like last week. He was brought up to Pedro's office and some of the frat brothers started to find it suspicious why Erik had become a regular in Pedro's meetings.
"What's up!" Erik says as a frat brother opens the door for him.
"Hey!" Pedro says back.
Erik walks in and the door is closed.
"Sorry, I forgot the keys but I don't think you'll need them." Erik says.
"Why is that?" Pedro asks back.
"You look a lot more muscular. Your chest is stretching out your dress shirt and you might need new ones soon."
"Umm thanks..." Pedro says as he accepts the compliment shyly.
Erik sits in the chair in front of Pedro's desk and goes through his backpack.
"Can I cum today?" Pedro asks.
"It's up to you. If you really need to, you will." Erik says back.
"Don't be like that please."
"I can give you more stimulation before we start."
"Isn't that just foreplay?"
"Uhhh... I guess."
"No! I'm not gay."
"Your choice. I want you naked this time"
"Okay."
Erik reaches inside his backpack and pulls out the same dildo as before.
"Get naked now." Erik says.
Pedro starts to remove his dress shirt and Erik sees the increased size of his pecs. Erik can't help himself but make a comment about them.
"Your pecs look bigger." Erik says.
"Really?" Pedro excitedly asks.
"Yeah. Those nipples even look puffier."
That comment made Pedro seem self-conscious. Pedro removes his dress pants and drops them on the floor but keeps his boxers on.
"What about your boxers?" Erik asks.
"Are we going to jump into it already?" Pedro asks back.
"Yeah."
"Okay."
Pedro removes his boxer showing off his tiny pink cage. Erik looks behind and sees Pedro's ass has grown.
"Your training seems to be working." Erik says without thinking about his phrasing.
"Training?" Pedro asks back confused.
"Yeah. Whatever you call your workout routine."
"You can call it that I guess. You really think so?" Pedro stretches out his arms and looks down on his almost naked body.
"Yeah. Just imagine what two months will do."
"That's a lot of time."
"You've already done two weeks."
Pedro contemplated doing it for more than a month. Pedro's body had become more muscular. His ass looked much firmer and his pecs now had a slight bounce to them whenever Pedro moved around. Pedro's biceps and thighs were also a bit bigger but Erik didn't care as much about them.
"Get on the desk so we can begin." Erik says.
Pedro jumps on the desk excitedly.
"Do you have gloves? I need to check you first." Erik says.
"Check for what?" Pedro asks back.
"I need to check your prostate."
"Bro! What! Why!?"
"Not ejaculating for this long can make your prostate get swollen."
"Is that bad?"
"Depends."
"Why didn't you tell me!"
"It's no big deal. Just a check."
"Are you going to stick a finger in me?"
"Yeah."
"I don't want you to. I haven't even gotten it checked by the doctor."
"So you do really need it then."
"Your fingers look bony."
"Just tell me where they are."
"They're in my desk drawers."
Erik goes around to the president's chair and sees several drawers. He opens several of them looking for the gloves but he sees something interesting when he opens one of them.
"What's this?" Erik picks up the object and shows it to Pedro.
"A dildo..." Pedro looks down in shame.
"Why do you have it?"
"I tried to masturbate with it."
"So, you tried to cheat?"
"It's not cheating."
"It's cheating. The deal was you would get to cum once a week under my watch."
