Marrying Melinda is currently just .99p for UK readers and .99 in the USA.

The deal ends on September 16th. Here's the blurb.

Daniel Christie's beloved grandfather is dying and Daniel knows there's only one way to make his last weeks happy ones - give him the one thing he's always wanted - the promise of heirs. All Dan has to do is fall in love, have the wedding, follow it with lots of little Daniels and-
Well, that;s not going to happen any time soon. 
So Daniel comes up with the next best solution. A good old fashioned marriage-of-convenience.
And he hires broke, unemployed Melinda Green to be his wife...