Keep your butt down, shoulders back and chest out. Stretch It Out Get a better butt workout when you increase your range of motion by stretching your calves, thighs, lower back, hamstrings and especially your hip flexors before and/or during your workouts for a bigger butt The video below shows you how to stretch.
And finally, you could try out some herbal options. Additionally, you should look for lubricant that you feel comfortable with. Drop sets Drop sets help you get a bigger butt faster by making you do more reps even after you've reached a point where you're not able to do another rep.