Lisa Kleypas - Secrets of a Summer Night (Wallflowers, #1)

Four young ladies enter London society with one common goal: they must use their feminine wit and wiles to find a husband. So a daring husband-hunting scheme is born.

Annabelle Peyton, determined to save her family from disaster, decides to use her beauty and wit to tempt a suitable nobleman into making an offer of marriage. But Annabelle's most intriguing--and persistent--admirer, wealthy, powerful Simon Hunt, has made it clear that while he will introduce her to irresistible pleasure he will not offer marriage. Annabelle is determined to resist his unthinkable proposition . . . but it is impossible in the face of such skillful seduction.

Her friends, looking to help, conspire to entice a more suitable gentleman to offer for Annabelle, for only then will she be safe from Simon--and her own longings. But on one summer night, Annabelle succumbs to Simon's passionate embrace and tempting kisses . . . and she discovers that love is the most dangerous game of all.

Secrets of a Summer (#1 Wallflower) part 1 of 1