Complex sentence: Scoring a keg with his friend Stiles for a party, Scott and Boof end up alone in a closet and Scott gets rough when they begin making out, accidentally clawing Boof's back.
Split into simpler sentences: Scoring a keg with his friend Stiles for a party, Scott and Boof end up alone in a closet. However, Scott gets rough when they begin making out, accidentally clawing Boof's back.