Bath with sister

Soft evening light was shining through the bathroom window. Steam slowly rose and a comfortable warmth enveloped the two of them. ``Sister, you\'re full of bubbles!\'\' A kindergarten boy called out to his sister, his eyes sparkling. ``Yeah, isn\'t it fun?\'\' The older sister smiled and showed the boy the bubbles she had made in her hand. \"Here, this is how you wash it.\" The boy looked excited and imitated his older sister, picking up some foam and starting applying it to his face. \"Look at your boobs! You look like your big sister!\" ``Hehe, that\'s true.\'\' The older sister giggled and looked at the boy\'s face. ``Sister, let me touch you!\'\' the boy said in an innocent voice as he caressed his sister\'s breasts. \"Okay, just a little,\" the older sister said kindly. \"What do you think? Does it feel good?\" \"Sister...is it okay if I lick you...?\" the boy whispers. \"...Yes, that\'s fine. But I think it\'s time to go up. You\'ll catch a cold.\" The older sister gently stroked the boy\'s head and grabbed the shower. The boy continued to suck on his sister\'s nipples, although he seemed a little reluctant to leave. \"Oh... no... no more...\" The older sister was breathing heavily. ``What\'s wrong, sister? Are you done?\'\' the boy asked in a whisper, ``Have you already come?\'\'