jeans / a pair of jeans

[AlexAD]

Hello.

As far as I got the rule I can say, 'Look at the girl who wears black jeans (a pair of black jeans)'.

But when we are speaking about two separate things each one represents jeans then what do they call them?

'A pair of jeans' doesn't work here as they point to the whole one thing. Correct?

Thanks, Alex.

[5jj]

Look at the gir who wears black jeans (all the time)
Look at the girl who's wearing (a pair of) black jeans (at the moment).
Look at the girl who is carrying two pairs of black jeans.

[AlexAD]

Thanks, 5jj, for this short and very nice answer.

P.S. You are getting more and more close to bhai in your replies