Enough with the one-liners! A good joke needs to be set up, so you can appreciate it.

(Not that this one is any good, but it's the best I con do on short notice.)
Four guys go golfing. Mike says to the others, "Hey, I've got to stop by the pro-shop. I'll meet you at the tee."
The other three stroll out to the first tee, chatting along the way.
"So, John, how's that son of yours?"
"Well, he's in real estate, you know. Business has been booming. So much so that he just GAVE a friend of his a condo!"
Not to be outdone, Bill responds, "Well, my son is in the stock market. He's doing so well that he just put together a portfolio that he gave to one of HIS friends."
The third golfer chimes in, "My son sells cars. He's doing so well that he now owns his own franchise, and he just gave a new MERCEDES to HIS friend."
Just then Mike gets back. "What are you guys talking about?"
"Our sons. How is your's doing?"
Mike just shrugs. "I don't understand that boy. He works as a dancer at a gay bar. I guess he's doing OK, though. He's already got a condo, a stock portfolio, and a Mercedes."