Pretty decent typical SM. This is a trope we've read many times. The sister pretends the baby is hers to keep the rich uncle from taking it away from her. Typical arrogant SM hero who falls for the heroine but then there is the requisite break up a couple of page before the end where he finds out she's lied to him and he repudiates her only to come crawling back. But it's a formula that works for me so it's all good. Although I have found with my SM reading that I wish the hero's grovel was just a bit more thorough before the heroine falls all over herself forgiving him. ( )