Sheriff And The Impostor Bride by Elizabeth Bevarly

Her pregnant twin was missing!

Suddenly it was up to Rachel Jenson, the sister most likely to land in a sticky situation, to save her beloved twin from a hotbed of trouble. But Rachel hadn’t counted on strapping Oklahoma sheriff Riley Hunter. The darkly exotic temptation in a tan uniform was convinced she was the missing mum-to-be. And now Rachel was torn between continuing the charade to protect her family or confiding in this honourable lawman who’d captured her heart...