He is a two kids father. vs He is a father of two kids.

Some examples from the web:

• Mr President, communication is a two-way process.
• He said the fish is a two.
• Now, this is a two-pronged attack.
• This, is a two-way headset with a camera I modified.
• Because Rosemary really is a two-person job.
• The nearest hospital is a two-hour flight...
• Now then, this is a two-prong operation.
• The Danish West Indies is a two-week journey.
• Liz, I believe doctor/patient confidentiality is a two-way street.
• Well, support is a two-way street.
• This is a two hour train ride.
• Longsdale is a two-bit gangster who runs one of the sleaziest operations in town.
• Properly scouting a facility's security is a two-step process.
• Trust is a two-way street, Carter.
• This is a two-tiered glen-reeder 2700 museum-quality alarm.
• My resistance... is a two.
• The last thing I need is a two-year-old friend.
• Information is a two-way street, Miss Barnes.
• This one is a two-bit counter.
• Integration is a two-way process between the host society and immigrants.

Some examples from the web:

• Take it from a father of two, if he is your son, there'll be no mistaking it.
• He is a father barely making ends meet.
• You've had a few other things to worry about, Bessie... ...like the lives of two kids.
• He was a father of two.
• He is the father of two children.
• He is father of two girls.
• I looked at his file, he's a father of two, certified financial planner, youth soccer coach.
• [But good or bad, he is a father first and foremost and has,...]
• He is a recently divorced father of two.
• The day before yesterday, a 52-year old greengrocer, a father of two daughters, was shot dead in the middle of the street in Mosul.
• Choosing a son-in-law is a father's greatest responsibility.
• It is a father's task to impart wisdom.
• Rothstein is a father figure, and everything he aspires to be.
• Being strict is a father's burden.
• The present occupant is a Father Jasper.
• Why? Can't a father of two be happy?
• Just as it is a father's prerogative to protect his daughter's heart from those he feels will do it harm.
• I know. I guess I always thought Gibson is a father, and he'd never go through with it.
• That is a father put a hatch in my garage.
• No. This is a father's job.