Waking up staring at Mama Erika's cleavage is one of my daily routines. I come from a single-parent household, so it's a little lonely without my dad around, but having Mama's breasts all to myself isn't so bad. However, it's troubling that I can't stop fantasizing about her breasts every day. Mama notices the changes in my Kokoro and body and is happy, saying, "You've grown up." To celebrate, she's giving me a titjob with her cleavage, a dream come true, and even teaching me about sex with that body...!