Thank you Mr. Stinky, I'll get right on that after I figure out just who appointed you censor and why this question is any more foul than so many others.
Once again, I am seriously curious about how and why anyone would want to turn their son into a cuckold? I'm guessing the anger I'm reading goes back to the odd definitions of cucks given on this forum. A cuckold by dictionary definition is a man whose wife has sex with other men.
So first step would be to get him married. That doesn't sound too perverted, it can happen to the best of us! Then you would need to make sure his wife screws around with other men. Some statistics say upwards of 30% of all wives screw around on their husbands at least once, and let's face facts, a lot of men deserve it by the way they treat their wives. However, to be conservative you could take your chances on any young lady and over time you would have a 1 in 10 (or better) chance.
Now if you are one of those people that thinks all cucks are submissive, panty-wearing sissies you could try dressing your boy in frilly dresses, teach him to clean house, and bow down before all women as his superiors. Then you might get lucky and have a sissy for a son, but still not a cuck because he's not married. Most likely, given the contrary nature of pre-teens and teens, he would walk out of the house, change into the most macho clothes he could find, stick some studs in his nose, cheeks, and whatever, beat up the other kids, fuck all his female school mates and in general just break your heart!
My guess is that you just can't make a cuck, we are just freaks of nature (in a nice' bend over backward to please our Lady kind of way). We actually make the best husbands if you don't mind us always begging to put our tiny penises where they don't do much good, and let's face facts, the Good Book does say that the meek will inherit the earth so maybe making your son into a cuck (if it were possible) would be doing him a favor!
So now that I have had my say, remember, "People...don't give this fucking bullshit post any more oxygen."