Caught Swimming by Mr. Darcy by Jane Adell

To escape the sweltering heat, the ever-independent Elizabeth Bennet seeks solace in a refreshing swim, never imagining that the proud Mr. Darcy would discover her in such a vulnerable state. A scandalous and mortifying encounter ensues, but the sparks fly, igniting a passion that neither can deny. However, when Mr. Darcy, driven by duty and honor, insists they must marry, Elizabeth, true to her convictions, refuses him. Haunted by his past behavior and the lingering stain of Mr. Wickham's revelations regarding Mr. Darcy, she cannot bring herself to accept his proposal.
Fate, it seems, has other plans. As they find themselves thrown together time and time again – at the pond, in Meryton, and at the lively Lucas Lodge – the tension between Elizabeth and Mr. Darcy reaches a boiling point. As they navigate the treacherous waters of society's expectations and their own burgeoning feelings, startling revelations come to light. Slowly, Elizabeth begins to see beneath Mr. Darcy's proud exterior, unraveling the man behind the enigma, and opening her heart to the possibility of love.
This clean and sweet Pride and Prejudice variation novella is over 27,000 words and has a happily ever after but not without Mr. Wickham and Mr. Collins trying to cause trouble.