Pinetreesexual Share definition Flag Bill Cipher's sexuality in any Billdip fanfic. Bill Cipher is Pinetreesexual for his sweet little Dipper. Pinetreesexual by Kaylah_in_Crackland July 23, 2022 0 0 Get merch Get the Pinetreesexual mug. Buy Now — $32.95 See more merch