In progress (Pixiv Fanbox)

The serial killer cut off the hairy guy's penis instead of the testicles in order to keep his pure semen and removed the skinny guy's testicles to utilize his long shaft.

连环杀手切断了多毛男的阴茎而不是睾丸，以保持他的纯精液，并切除了瘦子的睾丸以利用他的长阴茎。

These toys ejaculated helping each other.

这些玩具射精时互相帮助。

The finished version

fanbox post: creator/421260/post/2502459

(Fanbox)