Well, tbh it's only a short-term win that isn't quite sustainable in the long term. Whose to say the FMC won't just fuck around with an even bigger/fat ugly bastard gorilla after getting bored of the current ape she's with?
Tbh, childhood friend, shmildhood friend, MC should just get it on with some other sexy asf babe and start his own harem or something.
Better yet, maybe there's a sequel where the MC had some other long lost childhood friend who is a hot ASF babe that looks like a cross between revy from black lagoon and Makina from ~ Fallen Makina and the City of Ruins and they end up fucking for all eternity and popping out little revy/makina clone children and stealking the gorilla's mom or something from the original doujin and adding her milfy ass to the harem.
View attachment 4017684
View attachment 4017685
Would be a wild ride for sure