She smelled me...WHY?

Yes worse title ever but here is what happened. Before going to work I showered in my dorm and arrived to the local college job festival. Tammy, Kimberly and Donna were all there. Tammy said she smelled soap and I said I showered she said that's what's up. Kimberly asked if I showered at this time everyday and I replied yes. Donna who I have a HUGE CRUSH on came right next to me and started smelling me.

Now she didn't say I smelled good but it was just odd. Why would a girl do this?
She smelled me...WHY?
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