Earth In-Laws are Wary (Earth Fathers, #3)

Max and Rick are travelling space with three children and one human friend they've promised to take home. They've overcome language barriers, confused surrogacy contracts and attacks from hostile aliens. And that includes political attacks and prejudice in addition to pirates boarding their spaceship. But now the children want to see their home planet and Rick is getting stranger every second they draw near the Hidden world. Max knows his belchy husband well enough to know something is wrong, but nothing would prepare him for the political and familial disaster waiting for them. This time, circumstances may pull their little family apart at the seams.