Osananajimi wa Tsunagaritai ~Sannin wa Issho Hen~

Childhood friends Kentaro, Arisa, and Ai grew up together, but a chance event leads Kentaro into a physical relationship with both girls. Although he originally liked Arisa, Kentaro realizes he has developed feelings for Ai as well and decides to have an important conversation with them. The three of them engage in an extended threesome, participating in various sexual acts including vaginal sex, oral sex, and mutual stimulation. Afterward, they take a break while Kentaro offers to cook dinner for the group. The girls express their deep affection for him, sharing a tender moment that solidifies their new polyamorous relationship.