I think tags Futanari & Dickgirl are wrong apply here, as these 2 characters are from Taimanin series, that buff fella is a scrawny trap in the series always subjected anal yaoi scene, while Snake Lady is one of the main antagonist can manifest a dick to rape torture MC but didn't do so here.

Base +6, Myuk +6, infernerox +6

Yeah this is WAY off. Shikanosuke is not a futa, he's a guy (even though he doesn't look it) and this was a commissioned TAKE THAT/joke towards his original appearance in Taimanin RPGX where Snake Lady (who CAN be futa) had her way with him.

Base +18, RSRQZX +6, Jstain +6, Komeiji Fan Club -6

Shikanosuke is so ripped(・o・)

Base +6, RSRQZX +6