I reckon her tits are probably small. She's shown plenty of her ass though which I think is her better feature.
There is a sex scene in the game where the character is naked but that has never been confirmed if its happening in the show. The sex scene is pretty important for her and the guys character so it will still probably happen but that doesn't mean Kaitlyn will get naked.
Anyway, she is MOMMY and can do no wrong. Can't wait for the next season of TLoU. She's going to kill it and put that man baby thing that plays Ellie to shame. I can't wait to see Kaitlyn stomp her ass.