My Cowlick Cop by Louise Collins

Jude Aster.
Police officer, lookout, and the brother with the wayward hair. It’s not easy for Jude juggling his job with the antics of Stud Muffins, but things get even more complicated when Luck Milligan sets him a trap.
Jude falls into it with humiliating results, and reluctantly agrees to be Luck’s eyes and ears at the station.
Is Luck a bit on the crazy side?
Yes.
Does he mock Jude’s hair and use photographs of cows to intimidate Jude into cooperating?
Yes.
Does he have a slight obsession with a part of Jude’s anatomy?
Absolutely.
But with Luck comes Hope, Luck’s twin sister, adopter of strays, cooker of stews and carer of thirty-one cats.
Thirty-two if Hope includes Jude.
Which she does.
When old wounds resurface between Jude and Stone, he doubts his place in the family and finds himself growing closer to Luck Milligan and his sister.
Sure, it’s equal parts blackmail, kidnap, and Stockholm syndrome, but that’s still something in Jude’s eyes.
Just like with his brothers, he’ll protect Luck and Hope at all costs.
And just like with his brothers, that will be put to the test…