Why does a man have trouble staying hard while laying on his back from sex or receiving a blowjob?

Name: Why does a man have trouble staying hard while laying on his back from sex or receiving a blowjob?
Uploaded: 2022-05-18T21:00:00Z
Duration: 27 min
Description: Why does a man have trouble staying hard while laying on his back from sex or receiving a blowjob?