Original sentence: Grinding, freak dancing or freaking and Crunking(UK) are slang terms for a set of dance moves popular  in the house and hip-hop dance styles.In Puerto Rico, the youth scene seems to have a completely different attitude towards this matter as common youth "perreo" parties become part of regular nightlife at a very early age.The accompanying dance music may vary but tends to be related to hip-hop or house, and most often conforms to 808 and 909 drum machine–driven tracks; operating within a comparatively narrow tempo range (between 118 and 135 bpm).The most common dance techniques involved in grinding are, but not limited to:.The partners, facing each other, straddle each other's thighs.This technique became popular with junior high age kids during the late 1990s
Edited sentence: Grinding, freak dancing or freaking and Crunking(UK) are slang terms for a relatively raunchy dancing set of moves popular  in the house and hip-hop dance styles.Like the jitterbug and Elvis' wiggling his hips, "grinding" will only increase in popularity if it is banned, like prohibition.The accompanying dance music may vary but tends to be related to hip-hop or house, and most often conforms to 808 and 909 drum machine driven tracks; operating within a comparatively narrow tempo range (between 118 and 135 bpm).The most common dance techniques involved in grinding ares, but not limited to:.The partners, facing each other, straddle each other’s thighs.This technique became popular with junior high age kids during the late 1990's.Though, this style of dance is only as bad as people make it.ºIn Puerto Rico, the youth scene seems to have a completely different attitude towards this matter as common youth "perreo" parties become part of regular nightlife at a very early age