[[frottage|Rubbing]] a [[penis]] inside another person's [[kneepits|kneepit]].

This tag is somewhat of a misnomer because while the word [[sex]] is used, it shouldn't be tagged as such as well. Sex is only when the penis is inserted into the vaginal or anal cavities.

h4. See Also

* [[armpit sex]]
* [[thigh sex]]
* [[frottage]]
* [[Tag Group:Sex Acts]]
膝裏コキ