"You're sure about that?" she asked, as she raised her shirt to reveal she wasn't wearing a bra. Her hard nipples were looking right at me.

"I-I-I'm v-very sure," I stammered, staring at my sister's perkily perfect tits. My cock was raging in my pants as I held her foot in my hand.

"So you're telling me you like your baby sister's tits?" she probed, seeming to love teasing me so relentlessly.

"They're perfect," I answered, my eyes fixated on them.

She pulled her shirt back down and asked, "Do you think my legs are as hot as Cassie's?"

"In these nylons, definitely," I said, sucking on another toe.

"You...