Hourglasses of words

Kinda as word association game but harder:

The number of letters of the word that you give have to respect the following pattern. The first user gives a 10 letter word, then the second user gives a 9 letter word, the third, a 8 letter word, etc. until the seventh user who gives a 4 letter word. At that point, the eighth user will 'change the direction' and give a 5 letter word, the nineth user, a 6 letter word, etc. until the thirteenth user who gives a 10 letter word. Then the next user 'changes the direction' again and the game continues in the same pattern.


literature (10 letters)

chemistry (9 letters)

erection (8 letters)

pervert (7 letters)

why do i feel it's totally written for me? xD

outfit (6 letters)

because it was ^^

stress (5 letters)

there you go i can be more of a perv

DICK ! (4 letters)

now backwards to 10 !

pussy (5 letters)

animal (6)

reading (7)