最近小弟購入了無口娘（非加大版），因為是第一次用所以想請教幾個問題
1內附的潤滑液是屌和杯子都抹上一層，還是杯子就好了？
2如果沒辦法直接插入，建議把洞口掰開嗎（洞太小），這樣會不會傷及杯體
3飛機杯大概可以用多久（多久容易壞）？
以上三個問題希望板上鄉民能幫我解惑
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