I can! Lesbians have a long history of using age gap relationships for constructive reasons. An older lesbian helps the younger adult navigate adult spaces, helps teach her adult things, provides a sense of security in a wide scary world. The younger lesbian helps the older adapt to an ever-changing world, and injects youthful energy into the relationship. They each provide culture sharing and are warm companions.

I know people put so much thought behind fauxcest concepts and it's all so nice and hot but my forever favourite is just, siblings being horny. So horny that every second they spend together they want to do something sexual. Winks and stolen touches in front of family. Inside jokes. Sitting in each other's laps. Teasing.