Ellie loves underwear. She still is in diapers because yes, she's still not ready to poo on the potty. During nap time, we usually find her getting into her drawer and putting her underwear on. Sometimes she'll even take off her diaper and put the underwear on (to our surprise when we find her after she has woken from her nap)! Luckily there have been no accidents while this has happened.
One day she woke up with underwear on over her pants, she looked like a super hero. Pretty funny.