1. Sekkusu, it's a japanese word for sex. English base, thus making it written katakana.

Relate Words:
Ecchi - Sex
(Native word for sex in Japan.)
Hentai - Pervert
(Native word for pervert in Japan. In America, somewhere down the line when hentai was translated into english it was refer. to sex/porn/anime porn, ect, ect. This is incorrect. Hentai mean pervert.)

Sidenote: I'm sorry for my bad english. >.<

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)