Search Results: looking at a girls boobs

So first off, I'm 23
But everyone thinks I look 18 because of my facial features and I'm quite short too

So anyways, we were talking about how most of these young school girls nowadays look older than they look
Esp when they have big boobs
And my boyfriend says "they dont even look 16, they look like mature ladies like 25 or something"

Anyway so my boyfriend has 2 guy housemates
One of them has his sister living there for a while because of personal reasons
So anyways, my boyfriend was telling me about her so I don't get surprised when I come over and there's a girl there
And then I asked him "how old is she?"
And he's like "oh she's 17 or 18.. but she looks older like 25 or 26"
Fair enough

And then I showed him this model that everyone thinks that looks like me
And he asked me "how old is she?"
And Im like "18"
And he's like "wtf? Omg young girls these days dont even look like their age. She looks 25 or 26"

I get soooooooooooo annoyed whenever he says "oh she looks 25 or 26"
He says that about nearly every girl
Like wtf -.-
I keep thinking whenever he says that, he's saying "damn she's hot/attractive"
Am I right to be annoyed?
I dont want to bring it up and cause an argument