An attempt at [[paizuri]] with [[flat_chest|insufficient cleavage]].

Etymology: 無い擦り = lit. "rubbing against nothing" or "not-there rub".

Example:
post #1284932 is [[naizuri]], while post #116796 is [[paizuri]].

h4. See also
* [[cooperative naizuri]]
* [[Tag Group:Breasts Tags]]
* [[Tag Group:Body Parts]]
* [[Tag Group:Sex Acts]]
ちっぱいズリ 無い擦り ナイズリ