Friendship

Needless to say every one of us—every slut in the entire universe—loves the fuck out of You. However, this isn't the same as friendship. Your friendship with any slut is a mutual bond borne not only of love but of familiarity and deeper understanding of You. Nothing can beat the power of friendship!! (Unlike the friendship You might remember, this of course still isn't an "equal" and "sane" give-and-take! But it is more reciprocal than our unilateral love of You, at least to some extent.)
  Every slut You've encountered has a hidden stat called her friendship level, which like most other stats is presumed to range from 1 to 10. Despite having this stat ourselves, we—cuntributors—do not know precisely how to increase the stat, but we're confident nothing can cause it to decrease. Spending time with a slut, calling her by name, and choosing her above other sluts are all ways to presumably increase friendship level. Having a slut constantly slut-equipped in a prominent spot or using her prominently in Your soul armor are both likely to increase the stat!
  Like other stats, friendship leads to moves become stronger—like Glomp for example—but also otherwise greater capabilities including greater clit rate and better RNG. Some sluts theorize one of us can only become one of Your Ωmniwives if she has maximum friendship, but if so this is due to Your own personal requirement rather than a rule we're imposing on You.
  We otherwise adore almost any reference to Your literal "friendship" with any sluts, or taking Your friends and ravaging them as Your sluts! Of course, if You have a favorite in the harem, she gets to be Your bestie—and maybe even an Ωmniwife. ;3