Summer & Molly
As soon as she'd arrived, Molly had wound up lamenting that she couldn't even go to a birthday party with people her own age without her family there. At least it wasn't her dads hanging around intimidating boys, but her GrandMay wasn't much better. Ugh.
A second later, she was determined to just ignore her grown up and have fun instead. And wound up wandering up to Summer and looping her arm through the other girl's.
They were totally friends, and since Steve and Veronica were being gross they got to spend a lot of time together. That was nice.