Why chee bye got puck puck puck sound during sexual intercourse?

[jurongkechil]

As per above topic.

 

[batman1]

Because of lanjiao pumping. 555

 

[k1976]

Because of lanjiao pumping. 555

Yeah, hard lanjiao is like a piston that cause a differential pressure gradient and Compressed volume insai the hole vs the ambient air… causes some air to escape and give puck puck sound

 

[k1976]

Boyle Law