Family Breeding

Family Breeding is a 2D visual novel with top-notch illustrations, in which you play as a young man living together with two women - a mother and a sister. Your family has slightly different traditions. The unmarried women in the family must knock up the head of the household, which in this case is you. Living surrounded by four hot women, it's hard to resist temptation.
"Family Reproduction" talks about incest and focuses heavily on reproduction and fertilization, as well as small BDSM scenes.