Sunbeam Lair red was the first color

technically it's a little early for them to start standing/walking, but they were late bloomers with their eyes opening so...

Now that Shiori's eyes had opened, she never wanted to close them. She held them wide, wider than was comfortable until reflex took over and she blinked. Black, for just a moment, and then the world opened up again. This time she began to blink ferociously, then gurgled happily. 

[b]Buhbuhbuh,[/q] she bubbled, tottering forth unsteadily. Yet she found that crawling as she had been was dissatisfying in some deep, instinctual way. She put all of her miniscule strength into surging up, up, up onto her legs. However, as she began to stand, she overbalanced and tumbled ass over teakettle right in front of her sister. For a moment she paused, blinking, before beginning to cry out again in shock at what had just occurred.