Yes it has been asked several times and the same answer has been given by Brittany. It's just that the cheer squad for Lehrmann choose to forget it so they can claim different motives. She decided to accompany him into Parliament House because she didn't want to wait in the uber outside on her own. Perfectly reasonable for any woman to think. Remember Lehrmann has offered to share a ride home, so his "popping by and picking something up" would have been believed. Also I could imagine a 23 year old staffer after quite a few drinks would have seen that as quite exciting after hours, especially accompanying a male senior staffer who just wanted to pick something up. It makes perfect sense unless one is a misogynist and doesn't like women. The rest is history.
