Your claim is simply heresay without any evidence to such a claim because my "claim" is just the opposite but I recognize i'm also going my personal experience and heresay without statistical evidence.
An last but not least, without being rude or overly aggressive YOU are going to have to make the first move at every step, a Dominican women could be dying to sleep with you but not sending any of the signals you're used to in a more open culture - just waiting for you to tell her that it's time to go get a room.
You may not think she's interested if she doesn't say anything, but 9 times out of 10 she is, she's just being careful not to be mistaken for a whore. Especially if you're white,because dominican women seem to prefer white men,because it's a status symbol and denotes wealth,intelligence etc...
If you should happen to be hispanic or black, I can't really offer any advice to you on picking up dominican women,because I don't know how they respond to such guys.
Now,on your question about wether or not 45 year old man land 25 year old dominican women, I couldn't help but smile on that one.
I had a bunch of Dominicans over my house this weekend and showed the post you made and other post other people made and they couldn't stop laughing. But for real though.......dominicans really really revere caucasian features & complexions etc..