Girl's Behavior

Why did she want to be the one to take the photo so badly?

Scenario: I was getting ready to take a photo with a celeb, at a comicon i went to. They didn't bring someone to help out with but I wanted the pic, so, i said to her, "hey, im gonna need to you to take the photo for me". She, at the time, was actually in line to get another drink (alcohol), and she was like "can you have one of my kids take it for you (yes, i like a milf, get over it), anyway, i was like, sure, fine, whatever, lol.. and i guess, by the time i was ready to take the photo, she had either already gotten her second drink, or she decided to just skip it and go back later, line wasn't that long so, it's not like it mattered anyway because, there she was, with the phone in her hand, not one of her kids. I was like "uh, ok, cool, i guess".

So, why was it so important that she be the one to take it. Again, I don't really remember if it was because she had already gotten her drink, or if she just decided to get out of line, all i know is, she really wanted to be the one who took it, apparenly
Why did she want to be the one to take the photo so badly?
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