It was when he got a text from Amy that her parents were gonna be out of the house for the next week due to unforeseen events that John felt his heart almost skip a beat, and he excitedly waited and felt his pulsing erection return as she follow up texted him "we can do it tonight". That...he knew immediately what she wanted from him. He had not felt this excited about sex since he lost his virginity to Maggie Ramez from Biology Class. Ohh yeah she taught HIM about biology alright...
He had just gotten done washing up from his job, standing there in a pair of his boxers. Johnny was honestly feeling extremely excited, and when he went about trying to find the right clothes he got another text from Amy;
"Meet me at my place - in just really tight boxers".
John was confident in his body, but going over to Amy's place in just a pair? Well, it was just exciting and daring enough that he sprung up even harder. He replaced his boxers with a really tight pair from Calvin Klein and headed over, an audacious grin on his face. Simon it seemed was not yet home, big bro had his own lengthy schedule.
As John reached the door, he knocked and Amy answered, playfully gasping as she saw the rippling musculature of John and rigid, hard meat inside of John's Calvin Kleins. He rubbed the back of his neck somewhat nervously, "I-I came like you asked me to. Amy I'm...I'm so excited, I want you so fucking bad..."
Amy was taken in by his enthusiasm and joined him for a heady, continuous kiss for a moment, but when she felt how eagerly he was rubbing his manhood against her, she knew they'd just have a quick affair by the door at this rate. She broke off the kiss, "Johnny...let's go and continue this at my bed."
John gulped and followed her in right by her side, following all the way to the window, and let out a remarkably cute gasp as Amy slapped his ass. That made his cock jolt a bit in his boxers. "A-Amy...I'm already so excited..."
"I know you are," Amy said, grabbing on to John and falling with him on to the nice, large bed, "But I want you to last. Can you try and not blow your load too soon?" She took off her clothes in short order, which, as she was only wearing a skirt and some light clothes otherwise, was easy. That however just made John feel even hornier...
John realized what she was asking and nodded quickly, not wanting to let down Amy. He gasped as she started kissing his nipples, followed by kissing his powerful abs, and then taking his cock, covered by the thin layer of material, into her mouth. John gripped the sheets and grit his teeth hard, moaning and gasping quickly as she delighted him.
She then laid back after driving him thoroughly up the wall with that and John returned the favor in kind, licking and sucking at her pussy and clit. She was generous with her own moans, and gripped his thick hair and held him there. After a while, he got up, calmed a bit but still obviously very excited.
"Come and get me, big guy." And that was all the encouragement a drooling John needed.
Taking a moment to slick up his dick, John eased it in and then commenced thrusting away, pistoning his hips with astonishing strength and utter resilience. He flexed his right arm and loved it when she kissed his bicep, "...A-And that's...ooh fuck...why I work...glutes! I gotta...get my ass...nice and strong and big...so I can thrust deep in you, babe!"
"Ohh fuck John! Ohh John! You're so big!" That line of sex talk only furthered John's sex drive as he thrust away.
"You're going to be my big bodybuilder boyfriend soon, and---ohh fuck!" She was losing coherence fast before John's passion and desperate grip on his endurance. She was definitely turned on by just how eager he was in the pursuit of pleasure. Poised inside her, they kissed a few more times, and surprisingly it was Amy who shouted first;
"Ohh John, I'm...I'm...!"
"I know babe...c-can't hold it back much more!"
And the two of them in short order both experienced the most intense and gratifying orgasms of their lives one after the other, John continuing to thrust a few more times, arms gripping the sheets again as he almost whimpered from how intense the pleasure was. His body was feeling at once more alive than it ever had before.
That was not the last time the two of them had sex. John was a veritable bastion of energy - he kept getting it back up, which did make sense as he was quite young and virile. His body was covered in sweat all the way through, and even as Amy came again in the midst of their more or less continual tryst, she asked John, "How...how are you so...?"
"Babe...I'm...I'm your buff...energetic...hot boyfriend...I'd say---" He started and then came again mid-sentence, "---OOOH!"
He was not coming up with answers himself. He just knew he was full of passion tonight and that was nowhere near his last effort for him and Amy's big night.