Random Riddle: Two Body Parts

For each clue below, think of a common expression which mentions two body parts.
Some phrases refer to two different body parts (mix), others use the same body part twice (match).

Example: The law of retaliation. Answer: An eye for an eye.

1. To be in agreement
2. A couple strolling
3. Suddenly in love
4. Intimate discussion
5. Very expensive
6. Done at a ballroom
7. Poor, nothing extra

Bonus: The title of this children’s action song mentions four different body parts.

 

Random Riddle: Two Body Parts