Lily frequently states her need for regular sex, saying that if she went without for too long she'd be "out there selling it for a nickel". She has a more than passing sexual interest in other women, suggesting she may be bisexual. In particular, she has confessed several times, albeit in a seemingly joking fashion, that she finds Robin sexually attractive, and that Robin has been the subject of some "confusing dreams". Robin at one point says that she won't go near Lily after she's been drinking martinis, as she is prone to flirt quite strongly with her and even try to get the guys to dare them to make out. Well aware of Lily's sexual attraction to her, Robin tends to alternate between ignoring her advances, and being disturbed by them whenever they show themselves.