Def about sex. But because of the line "So many times now we've been through this before", it makes me think it's about an ex boyfriend and ex girlfriend who have broken up (maybe several times) but keep hooking up because they still have "lust" for each other. The boy, who maybe have initiated the break up in the first place, wants to keep hooking up because he's attracted to her but he doesn't want to lead her on and let her think he wants to get back together as boyfriend/girlfriend again... he wants her to come over for sex but because he cares about her feelings still he wants to be clear with her that that's all it is ("don't want to hurt you/ don't want to fuck with your feelings").
Def about sex. But because of the line "So many times now we've been through this before", it makes me think it's about an ex boyfriend and ex girlfriend who have broken up (maybe several times) but keep hooking up because they still have "lust" for each other. The boy, who maybe have initiated the break up in the first place, wants to keep hooking up because he's attracted to her but he doesn't want to lead her on and let her think he wants to get back together as boyfriend/girlfriend again... he wants her to come over for sex but because he cares about her feelings still he wants to be clear with her that that's all it is ("don't want to hurt you/ don't want to fuck with your feelings").