V Is For Vicious (Santorno #10)

This book is part of a series, it is not meant to be read as a standalone. It contains violence, homosexual relations and curse words galore.
What happens when you mix one part close family, one part assassination plot, a pinch of 'love is in the air', a big dollop of a man so vicious he doesn't even feel pain, sprinkle it with suave mob boss and then wash it all down with lots of vodka?
Kaboom!
The Youngblood extended family and Damon Santorno's organization have joined forces with mob families across Europe who share their mission of ridding the planet of the worst kind of human garbage - human traffickers, drug lords and murderers. When one such mission goes badly wrong, the family takes a hit as one of its own is severely injured and may never fully recover. In the wake of the heartache, they are introduced to badass assassin and all-around scary dude Vince Markov, who agrees to work with them.
Vince IS vicious, but he likes the team -- and something about sweet Dylan McAllister touches what passes for his heart. When he comes face to face with the man whose father he brutally murdered, will his time with the group end before it even gets started? Or will he have to take yet another life to survive?
Against the backdrop of blood red, there's also plenty of pink and blue as the Christmas stork delivers not one, not two - but four precious babies into the world. Stefan Youngblood is over the moon but he worries that one of his children will end up with a proverbial knife through his heart.