敏感な乳首の女性ほどエロく感度良好、勃起した乳首は更に感度を増しわずかな刺激でも敏感に反応するようになる。おっぱいを舐め続けてイキはてるレズビアンもいるらしい。The more sensitive a woman's nipples are, the more erotic and sensitive she becomes, and her erect nipples become even more sensitive and responsive to the slightest stimulation. There are even lesbians who lick their tits and cum just from that.
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