Notes:

1. The apple seen in the pictures is an accessory for YA/adults. Place the apple in the adult hand and slide the child's hand on top of the adult hand.
2. You can use a decorator apple instead, and raise it up into place. The pose would also look fine without an apple at all or you could choose another item.

CC Seen With This Set - You may choose your own

1. Apple accessory
https://tudart.tumblr.com/post/88462268388/set-death-note-by-lilit-and-tudart-part-1

2. Tween stool
https://www.thesimsresource.com/downloads/details/category/sims3-objects-furnishing-comfort-diningchairs/title/herritage-tween-room-stool/id/955278/

Codes

ah_bmit_childriding1 (horse standing still goes with, poses 2,3,4,5,6,7,8)
c_bmit_childriding2 (child standing on stool)
a_bmit_childriding3 (adult lifting child onto horse)
a_bmit_childriding4 (adult holding horse head)
c_bmit_childriding5 (child being lifted down)
a_bmit_childriding6 (adult lifting child down)
c_bmit_childriding7 (child thinking about stepping onto stool)
a_bmit_childriding8 (adult offering hand to child, kneeling down)
ah_bmit_childriding9 (horse turning head to left, child pulling mane)
c_bmit_childriding10 (child leaning forward on horse back scared, pulling mane)
a_bmit_childriding11 (adult pushing horse neck/head back, holding child's arm)
ah_bmit_childriding12 (horse walking, left leg up)
ah_bmit_childriding13 (horse walking)
a_bmit_childriding14 (walking with horse)
c_bmit_childriding15 (child on horse back, scared)
a_bmit_childriding16 (walking next to horse with child on back)
c_bmit_childriding17 (child holding apple with adult, afraid of horse)
a_bmit_childriding18 (holding apple on child's hand for horse)
ah_bmit_childriding19 (horse waiting for apple)
c_bmit_childriding20 (child holding apple with adult for horse to eat)
a_bmit_childriding21 (holding apple on child's hand)
ah_bmit_childriding22 (horse eating apple)
c_bmit_childriding23 (child hugging horse)
ah_bmit_childriding24 (horse looking back at child hugging horse's leg)

Credits: RicciNumbers, Tudart