Ones where the girl feels the most comfortable. The more comfortable, confident, relaxed she is, the better it will feel. So all those crazy standing positions, or like hanging onto a rope while being eaten out in midair, are just overrated. They can be fun, but they’re not the most conducive for the BEST of the BEST.
Try having her on her back with pillows under her ass and her legs draped over your shoulders.The higher she is, the more you can reach and the angle is better. But if her back is arching too much, that can be uncomfortable. So watch out for that.
Also try it sideways. Both of you on your sides, your head between her legs, and go to town. There’s a lot of access that way, it’s really comfortable, and it’s different than the norm so it feels great. You can have fun doing a 69 that way too, instead of being on top of each other, try just being side by side.
Sumptuous Daydreams 