Elf no Genkai Shuuraku wo Zetsurin Chinpo de Sukuu Tanetsuke Haramase Harem

A boring, unattractive, middle-aged man whose only hobby is going to brothels is reincarnated into a world of elves! The elves need his help to repopulate their village. The man mates with sexually irresistible elves until they are impregnated!

(Source: Coolmic)