1. I have a niece like described by the OP. I never thought a man, or woman, could exist that was like that. But, alas....
Approaching marriage for the long haul:
1. The thong bikini body only lasts as long as it takes the first kid to arrive. (Disagree - Depends on the woman)
2. Real as**s have an attractive bounce. Choose one you like a lot. You will see it walking away from you to the other room the many times you are being a prick. (True - Remember, be a prick when they are wearing yoga pants)
3. Eyes matter. (True, especially when they roll)
4. Don't ever tell your wife she needs to get back in shape after she gives birth. Your expectations shouldn't have been so near sighted. She will still look quite good. Maybe even better than your beer gut. (Yeah, mine was in better shape than me 2 days after the birth so yeah, I wasn't gonna say that. I don't enjoy sleeping on the couch)
5. Find one that won't speak to you for atleast 3 days after getting mad at you. That time is so peaceful. (Disagree, the quiet and simmering nature scares me more than anything)
6. If you thought marriage was an endless supply of easy sex, you will be cheating within a year or less. (Not always but logistics change once kids are involved)
7. You will help with indoor chores. You will do 85% of outdoor chores yourself. Fact. Accept it. Only a token few gets a woman that does as much outside as you do inside.(You are a wise man)
8. Regardless of who cooks, the kitchen aftermath is yours. (True)
9. Partying with the wife and friends might be fun, but my 50 year old non-smoking/seldom drinking wife has looks 30, and your 30 tear old party wife does not. (Usually, at a certain age the women can still hang party wise while the guys are ready to be done)
10. If your wife does not grow older to look like her mom, she was adopted. Plan accordingly. If you don't like the way her mom looks, you better be marrying for true love. (True)
11. If she wants to fool around you have to. If you want to fool around, it's optional for her. It don't make sense. It's just life. (True)