The chest that didn't grow... breasts, bosom. Born a woman, yet without the symbol of motherhood. With a cute face, undress and it's like a "cutting board" state. The gap is irresistibly charming. Even with vigorous thrusting in the missionary position, it doesn't sway, and there are no breasts to caress. Instead, there are highly sensitive nipples. Focus on one point... if you tease there, it results in twitching spasms. That's nice, it's the best (laugh).
