Royal Cancun
After snorkeling, while the snorkel is still in her mouth, You dig a hole in the sand and bury her head with the other end of the snorkel sticking out of the sand, lift her ass high in the air and do her dogie style, When your about to cum pull out and shoot your load in the snorkel. The cum will block her air supply causing her to inhale deeply forcing the cum to shoot down her throat.
I took my girl out snorkeling all day and I wanted to do something special for her, so I treated her to a Royal Cancun.