The present invention relates to an expandable external penile support device (EEPSD) for use on a penis during sexual intercourse. The EEPSD includes a first support ring proximate a base of the penis, a latch pivotably coupled to the support ring, and a support member extending from the latch and defining a second support ring engageable with a distal end of the penis. The EEPSD expands and contracts to accommodate changes in penis size, usually due to the gain and loss of an erection.