Two of four boys arrested for rape in August were arrested again and charged with minor in possession of alcohol Sunday.
Tyler Creech, 19, and Christopher Ellis, 17, were both charged.
Ellis was also charged with drug paraphernalia.
In August, two 16-year-old girls say Ellis, Creech and two other teens took turns raping them.
The girls told police they were all drinking in a home in a Murrells Inlet subdivision when they ended up in a bedroom.
They say the assault went on for hours even though they asked the boys to stop.