DD aged 3 just opened her labia and pointed to her clitoris and said 'whats this mama' and I said 'its your clitoris' and she said 'clitoris? oh whats that for?' and I was stumped as to what to tell her, being 3 and all, then wondered if I was too 'grown up' in how I described it.
How have you explained this to your toddler in a way that does not confuse them?