https://www.fanbox.cc/@nia0122/posts/9193313
https://x.com/niaURA18
https://www.pixiv.net/en/users/909090

I appreciate the effect of her still needing to bend her legs a bit to facilitate doggystyle, even with the step stool there.
I also appreciate the implication that she either remained there, bent at the waist, long enough for him to get the stool in position and then climb it and align himself, or she had the stool in place already and knocked the eraser into just the right spot to bend over in front of the stool. Either possibility is hilarious.

Base +19, FFFFFACK +13