There is a married couple with two kids. They are a young couple and the guy's teenage brother lives with them. Then, to add to the mix--they invite a girl to live with them--at the time she is dating the teenage brother...but soon after she begins living with them, they break up. Like most teenage males, this puts the brother back into the "seeking sex" mode. The girl is back with her ex, yet still living with their family...so she is getting plenty of sex. (this whole story basically comes down to sex...most funny stories do, I find.)
So back to the main couple...the husband works a job that renders him "too tired" for sex. So there is plenty of sex to be had...in a marriage relationship, even. Yet the HUSBAND, of all people, doesn't want to have it. OY, I say. OY. So the wife has two kids, a brother-in-law, a ex girlfriend of the brother-in-law, and a husband to take care of...and no sex to keep her going. !!! Wrong, I say. That just isn't the way things are supposed to be. So here's the funny irony...
There are brothers...in the same house...one is married...can have sex anytime he wants to with a very willing woman, but he chooses not to. The other is single...can't have sex at any time, much as he wants to and his ex girlfriend is even in the house reminding him of the fact. So...two brothers...one house...no sex... I hope you see the irony, because I'm not going to explain it any more.