I was thinking about this poblem today. There will be a serious issue in about 10 years. You will need a 2 story appartment, and a hole in the celing between the two floors. Your penis will be so long that when erect, your wife will have to be on the second floor over the hole and you will be standing up on the first floor with your penis reaching all the way up to her vagina on the second floor.
Better plan for this.
Also, once your erect penis will reach over your head, you'll have to be careful when walking through doors to prevent your penis from hitting the top of the door frame. That could be painfull.
You will likely get offers to become a porn actor with such a long penis. Could make for some interesting shots with you in the pool, and your penis reaching into the mouth of some other actor standing on the ground above you. You should be looking forwards to when yor penis reaches that length