That seems reasonable.

You pack up the clothes as she types up a list on your phone (getting her one on your plan is on her list of things that need to be done, but not today.). At the store she picks out a few things with the store credit you get that are actually quite a bit more revealing than you had initially bought, 2 tank tops and a short halter top dress. She buys some cotton panties that fit (they come in bags just like you always buy for yourself) but no bras.

Later you head to the supermarket and grab some cheap peach shampoo and body wash, she also talks you into getting some stuff to cook not just ready made stuff.