Just Come Over — Rosalind James

Rhys Fletcher is not in love with his sister-in-law.
That would be a very, very bad idea, and he doesn't entertain bad ideas. He also doesn't lie to himself.

Both of those things can't be true, so he'll do what he's done since the long-ago night when his brother, Dylan, turned up in an Auckland bar after a brutal rugby match between their two teams, and introduced his new girlfriend -- a dark-eyed, impossibly short, much-too-young girl named Zora.

He'll lie.

Now, his brother's gone, and Rhys is back in New Zealand and settling into his new job as the head coach of the Auckland Blues. Surely, being there for Dylan's widow and their son is the right thing to do. Until he gets a call from his lawyer, and flies to the States to find that handsome, charming, endlessly irresponsible Dylan has left yet another loose end for his big brother to sort out.

This one is six years old. And her birth certificate says she belongs to Rhys.