I have had my two for a bit too and haven't named them. I just call the female "the female" and the male "the male".
I have no clue why I can't seem to name them - my goldfish had names pretty much from day one.
10 Gallon Tank:
~Countless Pond Snails~1 Espe's Rasbora~1 Harlequin Rasbora~ 5 and 5.5 Gallon Tanks:
Avatar by Fenghuang
Many of my scaly friends from my original tank from 2011 have passed, except for two! I am in the process of re-doing my tank. :)