Hot Socks - S(t)ocking up

Abby-Allison and Nicole-Elaine stretched and walked over to the former step mothers room. They began pulling the socks and hosiery out onto the floor and rubbing their socked feet on them. Soon they all morphed into pairs of neon ankle socks for Nicole and knee high stripped socks for Abby. They heard a door shut down stairs. Glancing at the box and the socks on the ground the decided to show the new visitor some cute footwear. But from which group... ?