Tom and Diane were childhood friends. That's not exactly true. Their parents were friends and they were expected to play together whenever the adults were gathering. By high school, they drifted into separate groups and lost whatever connection they had, although as a small school in a small town their social lives frequently overlapped. Unbeknownst to their younger selves, their lives would cross again several years after college.
Tom went to school on the east coast while Diane went west. A few years after graduation they both found themselves in Pittsburgh; a big enough city for great opportunities while also residing near their smaller hometown. Relying on their hometown familiarity, they together created a small community of twenty-something friends with similar backgrounds.
It wasn't uncommon for various pairs to form within this circle of friends. Most didn't last, especially when the pairing started shortly after arrival. Those quick breakups destroyed some couples while others jumped at the next opportunity without much harm. Tom and Diane eased into their relationship with irregular late-night hookups developing into a public coupling over time.
Neither Tom nor Diane wanted kids, and being millennials, neither felt compelled to marry. They even kept separate houses near each other. Their joke among friends was that they enjoyed sharing each other's bedrooms but they could never merge their kitchens, which is a hindrance to moving in together. Yet they presented as a well-established couple among the more transient newcomers. As each developed their careers, their lives became more intertwined as both life companions as well as sexual partners.
Their mutual growth included an intense sexual relationship only in a later phase. This wasn't completely natural at first and took a lot of trial and error. Early on, their sex life was rather limited. Diane often described it as mediocre to her female friends. Tom's history included two longer relationships in college which didn't allow for much exploration. Diane knew she wasn't marriage material, so she was more open to casual sex but kept choosing non-giving selfish college boys. They both had grown up with conservative parents resulting in neither receiving good sex education from their experiences nor home life. Their developing friendship, therefore, came with unfortunate bland needs-based sex.
Phase 2
Around three years into their Pittsburgh relationship, Tom and Diane officially broke up. It wasn't traumatic since it was without a real spark at this point. That first breakup only lasted a short year but was instrumental to the next phase of their relationship. Tom thought he wanted a wife and hooked up with a slightly older Melissa. In a fortunate twist, Missy was kinky and wild and took Tom well out of his comfort zone. By the end of six months, Tom was taking group classes with Missy in the art of cunnilingus. He learned rope tying and bondage. And he ate a lot of pussy. Tom had never enjoyed eating pussy in college but something about Missy's body and her preparation awakened an unknown desire. Six months into Missy he was both exhausted and inspired.
Diane had an equally valuable transition. While she had grown up in a politically conservative family, their lifestyle was hippier. She hadn't been taught to be sexy in dress or body hair grooming. Having an untrimmed bush is fine for many women but it didn't exactly get her the most sexually exciting guys in college. Once she arrived as a single professional woman in Pittsburgh, she hooked up with several traveling musicians. These guys were more deliberate in their lovemaking than the younger college options. One of the longer relationships dared her to shave her entire body over a mushroom-inspired weekend. Other than her eyebrows she took his hair clippers and zipped it all off. She was quite stunning as a bald woman, both on top and bottom. This led her and the aforementioned guitar player to enjoy a five-day sex-fest in the Florida Keys during one tour. This musician played her body like an instrument; something she previously hadn't truly experienced. She returned home knowing more about what she liked, empowered to expect it, and with enough confidence to ask for what she wanted.
When things settled down, Tom and Diane found themselves missing each other's companionship. One night they got drunk and while reminiscing about their old relationship, they also shared stories of their last year being single. Without jealousy, no detail was barred. By the end of several hours, the two took a shot of whisky, stripped off their clothes, and rekindled their romantic relationship. Rekindled is hardly the correct word as this was a total replacement of their past.
Tom went down on Diane for a surprisingly long time to her newly acquired satisfaction. Tom had some restraining straps under his bed left by Missy, and constrained Diane's arms to the bed while he spent the next twenty minutes licking and sucking Diane's pussy using every technique he had learned. He started working out this past year which gave him a very toned body. Diane loved his sculpted shoulders as she looked down at him between her legs. Listening and feeling Diane's body, he adjusted to what she was telling him she liked. He would mix up his play with his fingers until she squirmed, then return to the licking sensation she liked best.
Eventually, Diane wriggled her hands out of the straps, rolled on top of Tom, and explored his body. She took charge of his penis like she hadn't previously. Diane never lost her slim figure, always eating well and being active. Her strength was nimble and fluid. She sat on Tom's chest, allowing him to still please her orally, while she reached behind her back stroking Tom's motivated erection. Tom was looking up towards exceptional breasts. They weren't large yet perfectly shaped, extruding from the tight firm abs. Unlike the normal fifteen-minute sex of their past, they went on for an hour and a half changing positions continuously. Tom ended up behind Diana, pulling her hair back in a bunch. Diane had just told him to run his fingers on her scalp and to get rough. Tom slapped her firm ass, still gauging her responses while thrusting into her hard.
Tom needed to end just out of exhaustion. This was still new for him overall, and definitely new for him and Diane. Diane was equally impressed. She was enjoying Tom's body, as she had with the musicians, but now within this trusting comfortable relationship.
With the sexual limitations solved, their otherwise amazingly well-matched relationship continued to grow to the envy of their friends.
Phase 3
About five years into this developing community, Tom's best friend Kevin moved to the neighborhood. Kevin and Tom grew up as neighbors and were roommates during their freshman year. Ultimately Kevin quit school early and returned home. Tom and Kevin maintained their friendship which later attracted Kevin to the big city. Diane and Kevin were also familiar as kids, being from the same small town.