A copulation always requires a partner, and such a partner (or probable partner) receives several names. Please note that mate means colleague or also person with whom someone shares something. Thus, if two girls have the same loverboy, they are fuckmates (they share the same fucker) also.
The mostdifficult company you could find when you go on a school trip, an exchange or when you are on Erasmus.
Stadistics of finding a Room Fuckmate:
B= Boy. G=Girl. ~ = joins to. •= sex.
°= no sex. B/G = Boy or Girl.
^ = Common situation.
× = Uncommon situation.