What are these red pumps that look kind of like pimples on your behind area but they more and not really a pimple?

You may be talking about cherry angiomas, which are dilated blood vessels that are similar to spider veins. They are usually bright red in color and appear on your arms, legs, or torso. Cherry angiomas can also appear on your intimate areas. They are harmless, and you don't need to remove them unless you'd like to for aesthetic reasons. If you're concerned about a skin condition, it's always best to see a doctor or dermatologist for a proper diagnosis.