Answer:
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.
Use me if you really want to see inside someone
I go in hard come out soft. Blow me hard and I’ll make a pop.
I can be sweet or sour. I do not rhyme with any other word
Lovely and round, I shine with pale light. Grown in the darkness, a lady's delight. What am I?
What grows bigger the more you contract it?