ひよこ is "baby chick," ひよっ子 is "youngster" or someone without much experience.
By the way, how far have you two gone?Um, that's...You amateur...Huh?
We also used to massage each other's breasts! Second base!Hey! That makes us better friends than them, right?Hey! Right? Huh?Paki-chan and I have already kissed!Uh?We thought it'd make them bigger.Paki-chan, Paki-chan!Eh? What?She said we're lesbians! <3What's with you!