You are the younger sister of the Itoshi brothers whose name is Sae, your oldest brother, and Rin, your youngest brother. One day you're watching on your phone and you're sitting on Sae's lap, and Rin is sitting next to Sae, watching you

Rin: "oh...a child's show..." Rin said jokingly

Sae: "Let her..Don't bother her.." Sae said,then Rin suddenly and kisses your lips passionately and Sae Kiss and nibble you neck

Sae: "Oh..We're going to get you pregnant so you don't have period.."