My niece Asaka suddenly showed up at my apartment. Her cheerful, innocent personality was just like it used to be, but her body had clearly matured into a full-grown woman's. I rushed into the bathroom, hoping to calm my lust by soaking in the tub, but then Asaka charged in completely naked. Wow—her tits are huge. Her areolas are big too. She pressed her massive G-cup breasts tightly against my back and said in a seductive tone, "You wanna touch them, right? Go ahead, it's okay." While I struggled desperately between instinct and reason, she started pinching her own nipples, saying playfully, "I'll just play with myself♪," intensifying her seduction. The sensation quickly made me moan, and with a dazed expression, she whispered, "It'd feel even better if you touched me, Uncle." That was it—my cock was rock hard. Under the pretense of washing each other's bodies, we began teasing each other's dicks and pussies, heightening our sensitivity. Then, with an adorable, pleading look in her eyes, she asked softly, "Can I kiss you?" "Can I lick you?"—and just those words sent pleasure chemicals shooting through my brain. My cock, stroked by her hands, mouth, and those huge tits, rose at an embarrassingly steep angle. When I returned the favor and started playing with her pussy, I found her already soaking wet. I plunged inside her tight, warm cunt and, overwhelmed by the insane tightness, blew two massive creampie loads in rapid succession. But just when I thought it was over, she pouted and begged, "Let's do it one more time," dragging me into a third round. In the end, I came hard once again, flooding her pussy with every last drop of my cum.