Four Weddings and a Duke

As the middle—and least marriageable—sister in a bevy of swans, Lavinia Wynnburn is quite content being the odd duck out. This way, she's free to commit social faux pas without anyone much noticing. Until the Duke of Beaubrooke turns up the morning after a ball, asking for her hand in marriage.
Alexander Reddington doesn't particularly care for social niceties, nor is he particularly good at them. But now that the spare has become the heir, he must marry...and soon. When he stumbles into the same corner as a socially awkward wallflower, he knows he's found the perfect wife: one who won't bother him to attend every simpering event of the season.
Only, Alexander's shy and pretty new wife is finding her new position surprisingly exciting and keeps accepting every invitation that flutters past their door. And worse luck, he might even be falling for her. Now he must hide the truth about why he really proposed...before his unexpectedly happy marriage is dashed to pieces.