Andrew was my buddy's kid brother. When he slapped me around and took a piss on me in front of my wife and friends, he became an alpha male at my expense.
My wife was just supposed to pretend to by my buddy's girlfriend. But after he slapped me around in front of her and my friends, they became inseparable.
Best friend's brother beat me up at my bachelor party, consummated the marriage with my bride at the wedding, and joined the mile high club with my wife on our honeymoon.
Joseph was homeless and unemployed. I let him move in with my wife and I, rent-free. After my wife saw his big cock, he ended up becoming the man of the house.