Ichigo Aika: Zatsu de Namaiki na Imouto to Warikirenai Ani 11 Uncensored

Aika realizes she feels both excited and satisfied from her physical closeness with Kouta. Then at that moment, the image of a certain guy who once boasted that he'll teach her what real love is, flashes through her mind... Kouta, having finished his part-time job, was about to head home when he coincidentally runs into Aika, who was visiting as a customer. They end up going home together, but Aika leads him to a certain place.