Lauren Hawkeye 
Let Me In (Mills & Boon Spice Briefs) [EPUB ebook] 

Imogen hasn»t had sex with her husband, Ty, in over a year. She»s still as attracted to him as ever, but they»ve both been looking for something new to renew their desire for one another. Yet she never thought to find it at a friend»s wedding when another couple invites them to share their bed. Ty is obviously aroused by the idea and the thought of a manage thrills Imogen to her core. Could this be the key to rekindling their passion — and can Imogen go through with it? Book four of Lauren Hawkeye»s Erotic Me series.