How did this Happen?

Tsunade pulls Naruto to her chest and he happily began to suckle at her breasts to her delight, Tsunade sighs happily stroking Naruto's hair 'five years ago I wouldn't have believed I get this lucky still can't believe how it happened' Tsunade thought to herself looking at Naruto's glittering eyes as he lovingly feasted on her breasts and fucked himself on her cock for her pleasure as she thought back to how their relationship began.

It wasn't too long after he returned from his training trip with Jiraiya when Tsunade remembered that Naruto never had a physical in his life or even a medical file, she was more than a bit pissed when she found that out. Naturally she decided to make sure that Naruto got all the help and medical attention he needed even if she had to do it herself, which it turned out she did as Shizune the only other person she trust with Naruto's health, Sakura just wasn't ready, and Shizune had too much work at the hospital and couldn't fit Naruto into her schedule leaving only Tsunade capable and trustworthy enough to do it.

Naruto wasn't too happy with it as it took up both training and ramen time neither of which he was happy about. Regardless Tsunade dragged him into her private office in the Hospital and gave his physical doing everything to make up for lost time ending with a prostate test to check for any anomalies. suffice it say but not only was Naruto at the peak of health but she noticed that his anal passage had regular insertion signs and that Naruto clearly enjoyed her finger inside of him even if he wanted to deny it.

Tsunade admitted to herself that honestly pressing up to Naruto from behind and putting her fingers inside of him feeling both his tightness and hearing his soft moans was a major turn on for her as a dominant woman. after the physical she asked Naruto how many time his toyed with his ass, to his vocal denial and her bland rebuttal of being a medic and knowing the signs of anal insertion both by fingers and toys she also remarked that she wouldn't mind doing it again if he asked and well, one thing lead to another. later after she blew and fingered him to multiple orgasms Naruto was under her desk eating her out while she filled out his file and some mission requests for her personal use.

A couple months later and here they were, Naruto riding her fake cock and happily being hers and Tsunade couldn't be happier with her life. "I love you Naruto" "I love you too Tsunade" Naruto replies causing Tsunade to grin before thrusting her hips up to Naruto's keening delight.