Even though I'm a guy, I always go in a bit of a pattern when choosing gender, and name them their original names:
Boy/Red-R/B/Y, Girl/Kris-Crystal, if I ever got it, then Boy/Emerald-R/S/E, Bit off pattern Boy/Red-FR/LG, Girl/Dawn-D/P/Pt, Boy/Gold-HG/SS, Girl/Hilda-B/W, Boy/Nate-BW2, then when...